Item:Q8773: Difference between revisions
Created claim: subclass of (P1): pyramidal number (Q8775) |
Created claim: defining formula (P333): {\frac {n(n+1)(4n-1)}{6}} |
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Property / defining formula | |||
{\frac {n(n+1)(4n-1)}{6}} | |||
Property / defining formula: / rank | |||
Normal rank |