Concept — Numero triangolare.
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01·39
Linked atoms
10 linked atoms.
01 Numeri e operazioni fondamentali
- Centered triangular number
- Oblong number
- Ramanujan’s house number
- Recognizing a triangular number
- Repunit in base nine
- Square-triangular number
- Sum of two consecutive triangular numbers
- Triangular number modulo 3