login
A341878
The number of vertices on a vesica piscis formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.
4
2, 5, 19, 65, 203, 429, 963, 1643, 2929, 4173, 7179, 9985, 14747, 19503, 27043, 34511, 46011, 57171, 73339, 87509, 111219, 132809, 162459, 190703, 229419, 266285, 315041, 361179, 423067, 480201, 556451, 627039, 718923, 805217, 915091, 1017379, 1148595, 1270569, 1423907, 1564359
OFFSET
1,1
COMMENTS
The terms are from numeric computation - no formula for a(n) is currently known.
LINKS
Scott R. Shannon, Vertices for n = 4.
Scott R. Shannon, Vertices for n = 5.
Scott R. Shannon, Vertices for n = 10.
Scott R. Shannon, Vertices for n = 15.
Scott R. Shannon, Vertices for n = 16.
Wikipedia, Vesica piscis.
CROSSREFS
Cf. A341877 (regions), A342152 (edges), A342153 (n-gons), A007569, A092866, A340644, A340686.
Sequence in context: A148433 A148434 A341762 * A062122 A148435 A047022
KEYWORD
nonn
AUTHOR
STATUS
approved