Item:Q8775: Difference between revisions
Created a new Item: pyramidal number, figurate number |
Created claim: defining formula (P333): P_n^r= \frac{3n^2 + n^3(r-2) - n(r-5)}{6} |
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| Property / instance of | |||
| Property / instance of: integer sequence / rank | |||
Normal rank | |||
| Property / subclass of | |||
| Property / subclass of: figurate number / rank | |||
Normal rank | |||
| Property / defining formula | |||
P_n^r= \frac{3n^2 + n^3(r-2) - n(r-5)}{6} | |||
| Property / defining formula: / rank | |||
Normal rank | |||
