pyramidal number (Q8775): Difference between revisions

Latest revision as of 14:27, 13 May 2023

figurate number

Language	Label	Description	Also known as
English	pyramidal number	figurate number

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P_{n}^{r}={\frac {3n^{2}+n^{3}(r-2)-n(r-5)}{6}}

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@@ Property / subclass of @@
+figurate number
@@ Property / subclass of: figurate number / rank @@
+Normal rank
@@ Property / defining formula @@
+ $P_{n}^{r}={\frac {3n^{2}+n^{3}(r-2)-n(r-5)}{6}}$ 
P_n^r= \frac{3n^2 + n^3(r-2) - n(r-5)}{6}
+Normal rank