A382223 - cp's OEIS frontend

A382223 Rectangular array read by antidiagonals: T(n,k) is the number of labeled digraphs on [n] along with a (coloring) function c:[n] -> [k] with the property that for all u,v in [n], u->v implies u and c(u)=0, k>=0.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	1
6	0
7	1
8	2
9	1
10	0
11	1
12	5
13	3
14	1
15	0
16	1
17	16
18	12
19	4
20	1
21	0
22	1
23	67
24	66
25	22
26	5
27	1
28	0
29	1
30	374
31	513
32	172
33	35
34	6
35	1
36	0
37	1
38	2825
39	5769
40	1969
41	355
42	51
43	7
44	1
45	0
46	1
47	29212
48	95706
49	33856
50	5380
51	636
52	70
53	8
54	1
55	0
56	1
57	417199
58	2379348
59	893188
60	125090
61	12006
62	1036
63	92
64	9
65	1

[1, 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 5, 3, 1, 0, 1, 16, 12, 4, 1, 0, 1, 67, 66, 22, 5, 1, 0, 1, 374, 513, 172, 35, 6, 1, 0, 1, 2825, 5769, 1969, 355, 51, 7, 1, 0, 1, 29212, 95706, 33856, 5380, 636, 70, 8, 1, 0, 1, 417199, 2379348, 893188, 125090, 12006, 1036, 92, 9, 1]

cp's OEIS Frontend

A382223 Rectangular array read by antidiagonals: T(n,k) is the number of labeled digraphs on [n] along with a (coloring) function c:[n] -> [k] with the property that for all u,v in [n], u->v implies u and c(u)=0, k>=0.

Table of values

List of values