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Everything about Factoriangular number

Sum of a factorial number and a triangular number

In number theory, a factoriangular number is an integer formed by adding a factorial and a triangular number with the same index. Wikipedia →

🧭 Start here: a 6-step reading path

  1. Read the overview: Factoriangular numberA 5-minute orientation
  2. Skim a recent paper: Proportion and number of cancer cases and deaths attributable to potentially modifiable risk factors in the United States, 2019Influential work since 2022
  3. Read the landmark paper: The Scree Test For The Number Of FactorsCited 10,061 times
  4. Go sideways: 10,000,000A closely related topic
  5. Go sideways: 100,000,000A closely related topic

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