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Revision as of 21:42, 12 May 2023 by
Fire
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Created claim:
defining formula
(P333)
: C_{k,n}={\frac {k}{2}}n(n-1)+1=5n^2-5n+1)
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Statements
instance of
centered polygonal number
series ordinal
10
follows
centered nonagonal number
0 references
defining formula
C
k
,
n
=
k
2
n
(
n
−
1
)
+
1
=
5
n
2
−
5
n
+
1
{\displaystyle C_{k,n}={\frac {k}{2}}n(n-1)+1=5n^{2}-5n+1}
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Sitelinks
⧼wikibase-sitelinks-mywikigroup⧽
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