A319729 - cp's OEIS frontend

A319729 Regular triangle read by rows where T(n,k) is the number of labeled simple graphs on n vertices where all non-isolated vertices have degree k.

n	a(n)
1	1
2	1
3	1
4	1
5	3
6	1
7	1
8	9
9	7
10	1
11	1
12	25
13	37
14	5
15	1
16	1
17	75
18	207
19	85
20	21
21	1
22	1
23	231
24	1347
25	525
26	591
27	7
28	1
29	1
30	763
31	10125
32	21385
33	23551
34	3535
35	113
36	1
37	1
38	2619
39	86173
40	180201
41	1216701
42	31647
43	30997
44	9
45	1
46	1
47	9495
48	819133
49	12066705
50	77636583
51	66620631
52	11485825
53	286929
54	955
55	1

[1, 1, 1, 1, 3, 1, 1, 9, 7, 1, 1, 25, 37, 5, 1, 1, 75, 207, 85, 21, 1, 1, 231, 1347, 525, 591, 7, 1, 1, 763, 10125, 21385, 23551, 3535, 113, 1, 1, 2619, 86173, 180201, 1216701, 31647, 30997, 9, 1, 1, 9495, 819133, 12066705, 77636583, 66620631, 11485825, 286929, 955, 1]

cp's OEIS Frontend

A319729 Regular triangle read by rows where T(n,k) is the number of labeled simple graphs on n vertices where all non-isolated vertices have degree k.

Table of values

List of values