A340688 - cp's OEIS frontend

A340688 Irregular table read by rows: Take a concave circular triangle with all diagonals drawn, as in A340685. Then T(n,k) = number of k-sided polygons in that figure for k >= 3.

n	a(n)
1	1
2	12
3	22
4	3
5	3
6	66
7	36
8	67
9	108
10	12
11	222
12	186
13	48
14	6
15	265
16	465
17	132
18	6
19	582
20	786
21	174
22	48
23	732
24	1905
25	324
26	76
27	3
28	6
29	1410
30	2268
31	558
32	156
33	6
34	1704
35	3732
36	861
37	223
38	18
39	3
40	2778
41	4242
42	1260
43	324
44	42
45	3369
46	6540
47	1872
48	409
49	42
50	24
51	4896
52	7302
53	2502
54	540
55	72
56	24
57	6138
58	10467
59	3306
60	907
61	99
62	30

[1, 12, 22, 3, 3, 66, 36, 67, 108, 12, 222, 186, 48, 6, 265, 465, 132, 6, 582, 786, 174, 48, 732, 1905, 324, 76, 3, 6, 1410, 2268, 558, 156, 6, 1704, 3732, 861, 223, 18, 3, 2778, 4242, 1260, 324, 42, 3369, 6540, 1872, 409, 42, 24, 4896, 7302, 2502, 540, 72, 24, 6138, 10467, 3306, 907, 99, 30]

cp's OEIS Frontend

A340688 Irregular table read by rows: Take a concave circular triangle with all diagonals drawn, as in A340685. Then T(n,k) = number of k-sided polygons in that figure for k >= 3.

Table of values

List of values