A371253 - cp's OEIS frontend

A371253 Number of regions formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius.

n	a(n)
1	1
2	1
3	6
4	5
5	26
6	18
7	99
8	89
9	270
10	271
11	650
12	516
13	1288
14	1303
15	2250
16	2337
17	4047
18	3636
19	6404
20	6401
21	9597
22	9769
23	14261
24	13632
25	20251
26	20125
27	27594
28	27749
29	37324
30	35040
31	49043
32	49185
33	63228
34	63547
35	80676
36	79380
37	101640
38	102259
39	125853
40	126561

[1, 1, 6, 5, 26, 18, 99, 89, 270, 271, 650, 516, 1288, 1303, 2250, 2337, 4047, 3636, 6404, 6401, 9597, 9769, 14261, 13632, 20251, 20125, 27594, 27749, 37324, 35040, 49043, 49185, 63228, 63547, 80676, 79380, 101640, 102259, 125853, 126561]

cp's OEIS Frontend

A371253 Number of regions formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius.

Table of values

List of values