A367279 - cp's OEIS frontend

A367279 Place n equally spaced points on each side of a square, and join each of these points by a chord to the 3*n new points on the other three sides: sequence gives number of edges in the resulting planar graph.

n	a(n)
0	4
1	16
2	156
3	788
4	2880
5	6468
6	15800
7	27828
8	49936
9	78732
10	134656
11	173396
12	286676
13	373004
14	495300
15	659556
16	938328
17	1086108
18	1525216
19	1727060
20	2187912
21	2724272
22	3468932
23	3730780
24	4781740
25	5611000
26	6549252
27	7404820
28	9272476
29	9645308
30	12278824
31	13302464
32	15300332
33	17565324
34	19475404
35	20973584

[4, 16, 156, 788, 2880, 6468, 15800, 27828, 49936, 78732, 134656, 173396, 286676, 373004, 495300, 659556, 938328, 1086108, 1525216, 1727060, 2187912, 2724272, 3468932, 3730780, 4781740, 5611000, 6549252, 7404820, 9272476, 9645308, 12278824, 13302464, 15300332, 17565324, 19475404, 20973584]

cp's OEIS Frontend

A367279 Place n equally spaced points on each side of a square, and join each of these points by a chord to the 3*n new points on the other three sides: sequence gives number of edges in the resulting planar graph.

Table of values

List of values