A380234 - cp's OEIS frontend

A380234 Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2).

n	a(n)
0	1
1	2
2	4
3	1
4	14
5	6
6	47
7	34
8	4
9	184
10	188
11	46
12	761
13	1040
14	408
15	33
16	3314
17	5756
18	3220
19	538
20	14997
21	32069
22	23824
23	6489
24	398
25	69886
26	179408
27	169336
28	66150
29	8506
30	333884
31	1009234
32	1170654
33	611278
34	129030
35	6405
36	1626998
37	5700548
38	7930892
39	5279172
40	1608172
41	168702
42	8067786
43	32341002
44	52930196
45	43429578
46	17758601
47	3080190
48	128448

[1, 2, 4, 1, 14, 6, 47, 34, 4, 184, 188, 46, 761, 1040, 408, 33, 3314, 5756, 3220, 538, 14997, 32069, 23824, 6489, 398, 69886, 179408, 169336, 66150, 8506, 333884, 1009234, 1170654, 611278, 129030, 6405, 1626998, 5700548, 7930892, 5279172, 1608172, 168702, 8067786, 32341002, 52930196, 43429578, 17758601, 3080190, 128448]

cp's OEIS Frontend

A380234 Triangle read by rows: T(n,k) is the number of achiral combinatorial maps with n edges and genus k, 0 <= k <= floor(n/2).

Table of values

List of values