A057279 - cp's OEIS frontend

A057279 Triangle T(n,k) of number of digraphs with a quasi-source on n unlabeled nodes and with k arcs, k = 0..n*(n-1).

n	a(n)
1	1
2	0
3	1
4	1
5	0
6	0
7	3
8	4
9	4
10	1
11	1
12	0
13	0
14	0
15	7
16	21
17	37
18	47
19	38
20	27
21	13
22	5
23	1
24	1
25	0
26	0
27	0
28	0
29	18
30	90
31	309
32	661
33	1125
34	1477
35	1665
36	1489
37	1154
38	707
39	379
40	154
41	61
42	16
43	5
44	1
45	1
46	0
47	0
48	0
49	0
50	0
51	44
52	374
53	1981
54	7107
55	19166
56	41867
57	77194
58	122918
59	170308
60	206980
61	220768
62	207301
63	171008
64	124110
65	78813
66	43862
67	21209
68	8951
69	3242
70	1043
71	288
72	76
73	17
74	5
75	1
76	1

[1, 0, 1, 1, 0, 0, 3, 4, 4, 1, 1, 0, 0, 0, 7, 21, 37, 47, 38, 27, 13, 5, 1, 1, 0, 0, 0, 0, 18, 90, 309, 661, 1125, 1477, 1665, 1489, 1154, 707, 379, 154, 61, 16, 5, 1, 1, 0, 0, 0, 0, 0, 44, 374, 1981, 7107, 19166, 41867, 77194, 122918, 170308, 206980, 220768, 207301, 171008, 124110, 78813, 43862, 21209, 8951, 3242, 1043, 288, 76, 17, 5, 1, 1]

cp's OEIS Frontend

A057279 Triangle T(n,k) of number of digraphs with a quasi-source on n unlabeled nodes and with k arcs, k = 0..n*(n-1).

Table of values

List of values