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(Q8774)
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Statements
subclass of
pyramidal number
follows
hexagonal pyramidal number
series ordinal
7
0 references
defining formula
n
(
n
+
1
)
(
5
n
−
2
)
6
{\displaystyle {\frac {n(n+1)(5n-2)}{6}}}
0 references
Sitelinks
⧼wikibase-sitelinks-mywikigroup⧽
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