A380617 - cp's OEIS frontend

A380617 Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and k vertices, 1 <= k <= n + 1.

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	1
6	5
7	8
8	5
9	2
10	16
11	28
12	26
13	12
14	3
15	53
16	121
17	128
18	82
19	28
20	6
21	206
22	528
23	686
24	505
25	239
26	68
27	10
28	817
29	2516
30	3638
31	3192
32	1802
33	686
34	157
35	20
36	3620
37	12302
38	20250
39	19976
40	13268
41	6078
42	1876
43	372
44	35
45	16361
46	63643
47	114669
48	126876
49	95422
50	50954
51	19346
52	5100
53	845
54	70

[1, 1, 1, 2, 2, 1, 5, 8, 5, 2, 16, 28, 26, 12, 3, 53, 121, 128, 82, 28, 6, 206, 528, 686, 505, 239, 68, 10, 817, 2516, 3638, 3192, 1802, 686, 157, 20, 3620, 12302, 20250, 19976, 13268, 6078, 1876, 372, 35, 16361, 63643, 114669, 126876, 95422, 50954, 19346, 5100, 845, 70]

cp's OEIS Frontend

A380617 Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and k vertices, 1 <= k <= n + 1.

Table of values

List of values