A342980 - cp's OEIS frontend

A342980 Triangle read by rows: T(n,k) is the number of rooted loopless planar maps with n edges, k faces and no isthmuses, n >= 0, k = 1..n+1.

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	0
7	1
8	1
9	0
10	0
11	1
12	8
13	1
14	0
15	0
16	1
17	20
18	20
19	1
20	0
21	0
22	1
23	38
24	131
25	38
26	1
27	0
28	0
29	1
30	63
31	469
32	469
33	63
34	1
35	0
36	0
37	1
38	96
39	1262
40	3008
41	1262
42	96
43	1
44	0
45	0
46	1
47	138
48	2862
49	12843
50	12843
51	2862
52	138
53	1
54	0
55	0
56	1
57	190
58	5780
59	42602
60	83088
61	42602
62	5780
63	190
64	1
65	0

[1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 8, 1, 0, 0, 1, 20, 20, 1, 0, 0, 1, 38, 131, 38, 1, 0, 0, 1, 63, 469, 469, 63, 1, 0, 0, 1, 96, 1262, 3008, 1262, 96, 1, 0, 0, 1, 138, 2862, 12843, 12843, 2862, 138, 1, 0, 0, 1, 190, 5780, 42602, 83088, 42602, 5780, 190, 1, 0]

cp's OEIS Frontend

A342980 Triangle read by rows: T(n,k) is the number of rooted loopless planar maps with n edges, k faces and no isthmuses, n >= 0, k = 1..n+1.

Table of values

List of values