Item:Q8771: Difference between revisions

@@ Property / subclass of @@
+figurate number
@@ Property / subclass of: figurate number / rank @@
+Normal rank
@@ Property / subclass of @@
+pyramidal number
@@ Property / subclass of: pyramidal number / rank @@
+Normal rank
@@ Property / subclass of: pyramidal number / qualifier @@
+follows: tetrahedral number
@@ Property / subclass of: pyramidal number / qualifier @@
+followed by: pentagonal pyramidal number
@@ Property / subclass of: pyramidal number / qualifier @@
+series ordinal: 4
@@ Property / part of @@
+pyramidal number
@@ Property / part of: pyramidal number / rank @@
+Normal rank
@@ Property / defining formula @@
+ ${\frac {2n^{3}+3n^{2}+n}{6}}$ 
{\frac  {2n^{3}+3n^{2}+n}{6}}
@@ Property / defining formula: ${\frac {2n^{3}+3n^{2}+n}{6}}$ / rank @@
+Normal rank