A343092 - cp's OEIS frontend

A343092 Triangle read by rows: T(n,k) is the number of rooted toroidal maps with n edges and k faces and without isthmuses, n >= 2, k = 1..n-1.

n	a(n)
2	1
3	4
4	10
5	10
6	79
7	70
8	20
9	340
10	900
11	420
12	35
13	1071
14	5846
15	7885
16	2310
17	56
18	2772
19	26320
20	71372
21	59080
22	12012
23	84
24	6258
25	93436
26	431739
27	706068
28	398846
29	60060
30	120
31	12768
32	280120
33	2000280
34	5494896
35	6052840
36	2499096
37	291720
38	165
39	24090
40	739420
41	7643265
42	32055391
43	58677420
44	46759630
45	14805705
46	1385670

[1, 4, 10, 10, 79, 70, 20, 340, 900, 420, 35, 1071, 5846, 7885, 2310, 56, 2772, 26320, 71372, 59080, 12012, 84, 6258, 93436, 431739, 706068, 398846, 60060, 120, 12768, 280120, 2000280, 5494896, 6052840, 2499096, 291720, 165, 24090, 739420, 7643265, 32055391, 58677420, 46759630, 14805705, 1385670]

cp's OEIS Frontend

A343092 Triangle read by rows: T(n,k) is the number of rooted toroidal maps with n edges and k faces and without isthmuses, n >= 2, k = 1..n-1.

Table of values

List of values