A339768 - cp's OEIS frontend

A339768 Square array read by descending antidiagonals. T(n,k) is the number of acyclic k-multidigraphs on n labeled vertices, n>=0,k>=0.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	3
9	1
10	1
11	1
12	5
13	25
14	1
15	1
16	1
17	7
18	109
19	543
20	1
21	1
22	1
23	9
24	289
25	9449
26	29281
27	1
28	1
29	1
30	11
31	601
32	63487
33	3068281
34	3781503
35	1
36	1
37	1
38	13
39	1081
40	267249
41	69711361
42	3586048685
43	1138779265
44	1

[1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 5, 25, 1, 1, 1, 7, 109, 543, 1, 1, 1, 9, 289, 9449, 29281, 1, 1, 1, 11, 601, 63487, 3068281, 3781503, 1, 1, 1, 13, 1081, 267249, 69711361, 3586048685, 1138779265, 1]

cp's OEIS Frontend

A339768 Square array read by descending antidiagonals. T(n,k) is the number of acyclic k-multidigraphs on n labeled vertices, n>=0,k>=0.

Table of values

List of values