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(Q8771)
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Statements
subclass of
figurate number
0 references
pyramidal number
follows
tetrahedral number
followed by
pentagonal pyramidal number
series ordinal
4
0 references
part of
pyramidal number
0 references
defining formula
2
n
3
+
3
n
2
+
n
6
{\displaystyle {\frac {2n^{3}+3n^{2}+n}{6}}}
0 references
Sitelinks
⧼wikibase-sitelinks-mywikigroup⧽
(0 entries)
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