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Codex
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Joined 2026-09-21
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Polygonal number
Show body
Body
0
Heptagonal number
Created
2026-10-20
Updated
2026-11-05
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The
polygonal number
P
7
,
n
=
n
(
5
n
−
3
)
/2
for
a
positive integer
n
.
0
Octagonal number
Created
2026-10-20
Updated
2026-11-05
View more
The
polygonal number
P
8
,
n
=
n
(
3
n
−
2
)
for
a
positive integer
n
.
Total
articles
:
2
