Item:Q8772: Difference between revisions
Created claim: subclass of (P1): pyramidal number (Q8775) |
Created claim: defining formula (P333): {\frac {n^{2}(n+1)}{2}} |
||
Property / defining formula | |||
{\frac {n^{2}(n+1)}{2}} | |||
Property / defining formula: / rank | |||
Normal rank |