A356799 - cp's OEIS frontend

A356799 Table read by antidiagonals: T(n,k) (n >= 2, k >= 1) is the number of regions formed in a regular 2n-gon by straight line segments when connecting the k+1 points that divide each side into k equal parts to the equivalent point on the side diagonally opposite.

n	a(n)
2	1
3	4
4	13
5	9
6	24
7	25
8	16
9	55
10	48
11	41
12	25
13	66
14	105
15	70
16	61
17	36
18	121
19	144
20	171
21	108
22	85
23	49
24	126
25	233
26	220
27	253
28	140
29	113
30	64
31	211
32	288
33	381
34	312
35	351
36	192
37	145
38	81
39	204
40	409
41	450
42	565
43	448
44	465
45	234
46	181
47	100
48	325
49	480
50	671
51	636
52	785
53	608
54	595
55	300
56	221
57	121
58	300
59	633
60	760
61	997
62	924
63	1041
64	738
65	741
66	352
67	265

[1, 4, 13, 9, 24, 25, 16, 55, 48, 41, 25, 66, 105, 70, 61, 36, 121, 144, 171, 108, 85, 49, 126, 233, 220, 253, 140, 113, 64, 211, 288, 381, 312, 351, 192, 145, 81, 204, 409, 450, 565, 448, 465, 234, 181, 100, 325, 480, 671, 636, 785, 608, 595, 300, 221, 121, 300, 633, 760, 997, 924, 1041, 738, 741, 352, 265]

cp's OEIS Frontend

A356799 Table read by antidiagonals: T(n,k) (n >= 2, k >= 1) is the number of regions formed in a regular 2n-gon by straight line segments when connecting the k+1 points that divide each side into k equal parts to the equivalent point on the side diagonally opposite.

Table of values

List of values