A204329 - cp's OEIS frontend

A204329 Irregular triangle read by rows: T(n,k) (n >= 2) is the number of cubic graphs on 2*n nodes with diameter k.

n	a(n)
2	1
3	0
4	2
5	0
6	2
7	3
8	0
9	1
10	15
11	2
12	1
13	0
14	0
15	34
16	43
17	6
18	2
19	0
20	0
21	34
22	351
23	93
24	24
25	6
26	1
27	0
28	0
29	14
30	2167
31	1499
32	261
33	101
34	14
35	4
36	0
37	0
38	1
39	12301
40	22992
41	4400
42	1229
43	310
44	55
45	12
46	1
47	0
48	0
49	1
50	57628
51	338356
52	90870
53	17281
54	5145
55	948
56	220
57	36
58	4
59	0
60	0
61	0
62	185836
63	4692045
64	2013271
65	321788
66	84159
67	17894
68	3516
69	799
70	118
71	20
72	1

[1, 0, 2, 0, 2, 3, 0, 1, 15, 2, 1, 0, 0, 34, 43, 6, 2, 0, 0, 34, 351, 93, 24, 6, 1, 0, 0, 14, 2167, 1499, 261, 101, 14, 4, 0, 0, 1, 12301, 22992, 4400, 1229, 310, 55, 12, 1, 0, 0, 1, 57628, 338356, 90870, 17281, 5145, 948, 220, 36, 4, 0, 0, 0, 185836, 4692045, 2013271, 321788, 84159, 17894, 3516, 799, 118, 20, 1]

cp's OEIS Frontend

A204329 Irregular triangle read by rows: T(n,k) (n >= 2) is the number of cubic graphs on 2*n nodes with diameter k.

Table of values

List of values