A334458 - cp's OEIS frontend

A334458 Number of vertices in a polygon whose boundary consists of n+2 equally spaced points around a semicircle and n+2 equally spaced points along the diameter (a total of 2n+2 points). See Comments for precise definition.

n	a(n)
0	1
1	4
2	12
3	39
4	125
5	271
6	609
7	1076
8	1884
9	2950
10	4642
11	6541
12	9607
13	12969
14	17505
15	23034
16	30294
17	37888
18	48488
19	59404
20	73506
21	88779
22	108077
23	127412
24	153000
25	178514
26	210366
27	242961
28	283243
29	322120
30	373147
31	422454
32	482442
33	542604
34	615300
35	685885
36	773189
37	857791

[1, 4, 12, 39, 125, 271, 609, 1076, 1884, 2950, 4642, 6541, 9607, 12969, 17505, 23034, 30294, 37888, 48488, 59404, 73506, 88779, 108077, 127412, 153000, 178514, 210366, 242961, 283243, 322120, 373147, 422454, 482442, 542604, 615300, 685885, 773189, 857791]

cp's OEIS Frontend

A334458 Number of vertices in a polygon whose boundary consists of n+2 equally spaced points around a semicircle and n+2 equally spaced points along the diameter (a total of 2n+2 points). See Comments for precise definition.

Table of values

List of values