A367276 - cp's OEIS frontend

A367276 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 vertices in the resulting planar graph.

n	a(n)
0	4
1	9
2	69
3	345
4	1337
5	2885
6	7445
7	12833
8	23365
9	36589
10	64669
11	80133
12	138313
13	176885
14	233765
15	312013
16	455273
17	513277
18	741965
19	819589
20	1046245
21	1310761
22	1692961
23	1772097
24	2315289
25	2713997
26	3165125
27	3552753
28	4538845
29	4602985
30	6015561
31	6432681
32	7421345
33	8550485
34	9439621
35	10063993
36	12635769

[4, 9, 69, 345, 1337, 2885, 7445, 12833, 23365, 36589, 64669, 80133, 138313, 176885, 233765, 312013, 455273, 513277, 741965, 819589, 1046245, 1310761, 1692961, 1772097, 2315289, 2713997, 3165125, 3552753, 4538845, 4602985, 6015561, 6432681, 7421345, 8550485, 9439621, 10063993, 12635769]

cp's OEIS Frontend

A367276 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 vertices in the resulting planar graph.

Table of values

List of values