A276639 - cp's OEIS frontend

A276639 Triangle T(m, n) = the number of point-labeled graphs with n points and m edges, no points isolated. By rows, n >= 0, ceiling(n/2) <= m <= binomial(n,2).

n	a(n)
1	1
2	1
3	3
4	1
5	3
6	16
7	15
8	6
9	1
10	30
11	135
12	222
13	205
14	120
15	45
16	10
17	1
18	15
19	330
20	1581
21	3760
22	5715
23	6165
24	4945
25	2997
26	1365
27	455
28	105
29	15
30	1
31	315
32	4410
33	23604
34	73755
35	159390
36	259105
37	331716
38	343161
39	290745
40	202755
41	116175
42	54257
43	20349
44	5985
45	1330
46	210
47	21
48	1

[1, 1, 3, 1, 3, 16, 15, 6, 1, 30, 135, 222, 205, 120, 45, 10, 1, 15, 330, 1581, 3760, 5715, 6165, 4945, 2997, 1365, 455, 105, 15, 1, 315, 4410, 23604, 73755, 159390, 259105, 331716, 343161, 290745, 202755, 116175, 54257, 20349, 5985, 1330, 210, 21, 1]

cp's OEIS Frontend

A276639 Triangle T(m, n) = the number of point-labeled graphs with n points and m edges, no points isolated. By rows, n >= 0, ceiling(n/2) <= m <= binomial(n,2).

Table of values

List of values