A372170 - cp's OEIS frontend

A372170 Irregular triangle read by rows where T(n,k) is the number of labeled simple graphs with n vertices and exactly k triangles, 0 <= k <= binomial(n,3).

n	a(n)
0	1
1	1
2	2
3	7
4	1
5	41
6	16
7	6
8	0
9	1
10	388
11	290
12	195
13	70
14	40
15	30
16	0
17	10
18	0
19	0
20	1
21	5789
22	6980
23	6910
24	4560
25	3030
26	2292
27	1230
28	780
29	600
30	180
31	236
32	60
33	45
34	60
35	0
36	0
37	15
38	0
39	0
40	0
41	1
42	133501
43	235270
44	313705
45	302505
46	260890
47	222509
48	174615
49	126780
50	102970
51	67165
52	50134
53	37485
54	20370
55	17990
56	11445
57	6552
58	4515
59	3570
60	1680
61	1785
62	154
63	735
64	455
65	140
66	0
67	105
68	105
69	0
70	0
71	0
72	21
73	0
74	0
75	0
76	0
77	1

[1, 1, 2, 7, 1, 41, 16, 6, 0, 1, 388, 290, 195, 70, 40, 30, 0, 10, 0, 0, 1, 5789, 6980, 6910, 4560, 3030, 2292, 1230, 780, 600, 180, 236, 60, 45, 60, 0, 0, 15, 0, 0, 0, 1, 133501, 235270, 313705, 302505, 260890, 222509, 174615, 126780, 102970, 67165, 50134, 37485, 20370, 17990, 11445, 6552, 4515, 3570, 1680, 1785, 154, 735, 455, 140, 0, 105, 105, 0, 0, 0, 21, 0, 0, 0, 0, 1]

cp's OEIS Frontend

A372170 Irregular triangle read by rows where T(n,k) is the number of labeled simple graphs with n vertices and exactly k triangles, 0 <= k <= binomial(n,3).

Table of values

List of values