Item:Q8770: Difference between revisions

@@ Property / instance of @@
+integer sequence
@@ Property / instance of: integer sequence / rank @@
+Normal rank
@@ Property / subclass of @@
+pyramidal number
@@ Property / subclass of: pyramidal number / rank @@
+Normal rank
@@ Property / subclass of: pyramidal number / qualifier @@
+followed by: square pyramidal number
@@ Property / subclass of: pyramidal number / qualifier @@
+series ordinal: 3
@@ Property / defining formula @@
+ ${\frac {n(n+1)(n+2)}{6}}$ 
{\frac  {n(n+1)(n+2)}{6}}
@@ Property / defining formula: ${\frac {n(n+1)(n+2)}{6}}$ / rank @@
+Normal rank