heptagonal pyramidal number (Q8774): Difference between revisions

Latest revision as of 14:27, 13 May 2023

pyramidal number

Language	Label	Description	Also known as
English	heptagonal pyramidal number	pyramidal number

7

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{\frac {n(n+1)(5n-2)}{6}}

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@@ Property / subclass of @@
+pyramidal number
@@ Property / subclass of: pyramidal number / rank @@
+Normal rank
@@ Property / subclass of: pyramidal number / qualifier @@
+follows: hexagonal pyramidal number
@@ Property / subclass of: pyramidal number / qualifier @@
+series ordinal: 7
@@ Property / defining formula @@
+ ${\frac {n(n+1)(5n-2)}{6}}$ 
\frac{n(n+1)(5n-2)}{6}
@@ Property / defining formula: ${\frac {n(n+1)(5n-2)}{6}}$ / rank @@
+Normal rank