Item:Q8772: Difference between revisions

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