|
| |
|
|
A332418
|
|
The number of vertices on a decagon formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.
|
|
4
|
|
|
|
171, 3581, 23651, 80191, 213041, 444251, 862711, 1481141, 2413721, 3701951, 5493891, 7765621, 10833601, 14589491, 19315751, 25064491, 32107771, 40337021, 50328771, 61790891, 75318371
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
See the links in A333139 for images of the decagons.
|
|
|
LINKS
|
Table of n, a(n) for n=1..21.
|
|
|
CROSSREFS
|
Cf. A333139 (regions), A332417 (n-gons), A332419 (edges), A330846, A092866, A332599, A007569.
Sequence in context: A185611 A195279 A016058 * A152926 A239270 A262142
Adjacent sequences: A332415 A332416 A332417 * A332419 A332420 A332421
|
|
|
KEYWORD
|
nonn,more
|
|
|
AUTHOR
|
Scott R. Shannon and N. J. A. Sloane, Mar 09 2020
|
|
|
EXTENSIONS
|
a(6)-a(21) from Lars Blomberg, May 18 2020
|
|
|
STATUS
|
approved
|
| |
|
|
