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Everything about Octagonal number
Number of points in an octagonal arrangement
In mathematics, an octagonal number is a figurate number. The nth octagonal number on is the number of dots in a pattern of dots consisting of the outlines of regular octagons with sides up to n dots, when the octagons are overlaid so that they share one vertex. The octagonal number for n is given by the formula 3n2 − 2n, with n > 0. The first few octagonal numbers are1, 8, 21, 40, 65, 96, 133, 176, 225, 280, 341, 408, 481, 560, 645, 736, 833, 936 Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: Octagonal numberA 5-minute orientation
- Skim a recent paper: Solving of assignment problem by Pythagorean octagonal neutrosophic fuzzy numberInfluential work since 2022
- Pick up a classic book: The white goddessThe most-reprinted book on the subject
- Read the landmark paper: On the number of spanning trees and normalized Laplacian of linear octagonal‐quadrilateral networksCited 68 times
- Go sideways: Heptagonal numberA closely related topic
- Go sideways: 288 (number)A closely related topic
📖 Definitions
No dictionary entry for this exact phrase.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
On the number of spanning trees and normalized Laplacian of linear octagonal‐quadrilateral networks
Resistance distance-based graph invariants and the number of spanning trees of linear crossed octagonal graphs
Rooting out letters: octagonal symbol alphabets and algebraic number theory
Octagonal fuzzy neutrosophic number and its application to reusable container inventory model with container shrinkage
The Intelligence of Octagonal Fuzzy Number to Determine the Fuzzy Critical Path: A New Ranking Method
On solving game problem using octagonal neutrosophic fuzzy number
Proof Without Words: Every Octagonal Number Is the Difference of Two Squares
Octagonal Neutrosophic Number: Its Different Representations, Properties, Graphs and De-neutrosophication with the application of Personnel Selection
🆕 Influential since 2022
Solving of assignment problem by Pythagorean octagonal neutrosophic fuzzy number
109.17 Covering a Hex Number with Octagonal Numbers
On Solving Game Problem using Octagonal Neutrosophic Fuzzy Number
MULTIPLICATIVE FUNCTIONS k-ADDITIVE ON GENERALISED OCTAGONAL NUMBERS
Domination number on an octagonal chain and an octagonal grid
📚 Books worth reading
The white goddessRobert Graves · 1920
Penny capitalismSol Tax · 1953
Working With NumbersJames T. Shea · 1987
American treasure and the price revolution in Spain, 1501-1650Earl J. Hamilton · 1934
Aperiodic CrystalsSiegbert Schmid · 2013- 📕PSPUZZLES 100 Number Search Puzzles All OctagonsLarry Harrington · 2014
- 📕Number- X -Octagonal Star Sudoku-250 Puzzles Bronze-Silver-Gold-Vol. 181Andrii Pitenko · 2018
- 📕Experimental evaluation of wall Mach number distributions of the octagonal test section proposed for NASA Lewis Research Center's altitude wind tunnelDouglas E. Harrington · 1986
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
- Heptagonal number In mathematics, a heptagonal number is a figurate number that is constructed by combining heptagons with ascending size. The n-th heptagonal number is…
- 288 (number) 288 (two hundred [and] eighty-eight) is the natural number following 287 and preceding 289. Because 288 = 2 · 12 · 12, it may also be called "two gross"…
- Decagonal number In mathematics, a decagonal number is a figurate number that extends the concept of triangular and square numbers to the decagon (a ten-sided polygon)…
- Star number In mathematics, a star number is a centered figurate number, a centered hexagram (six-pointed star), such as the Star of David, or the board Chinese checkers…
- Pentatope number In number theory, a pentatope number (or hypertetrahedral number or triangulo-triangular number) is a number in the fifth cell of any row of Pascal's triangle…
- Bell number In combinatorial mathematics, the Bell numbers count the possible partitions of a set. These numbers have been studied by mathematicians since the 19th…
- Doubly triangular number In mathematics, the doubly triangular numbers are the numbers that appear within the sequence of triangular numbers, in positions that are also triangular…
- Centered octahedral number In mathematics, a centered octahedral number or Haüy octahedral number is a figurate number that counts the points of a three-dimensional integer lattice…