A337161 - cp's OEIS frontend

A337161 Square array read by antidiagonals: T(n,k) is the number of simple labeled graphs G with vertex set V(G) = {v_1,...,v_n} along with a (coloring) function C:V(G) ->[k] such that v_i adjacent to v_j implies C(v_i) != C(v_j) and i implies C(v_i) <= C(v_j); n>=0, k>=0.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	1
9	0
10	1
11	3
12	4
13	1
14	0
15	1
16	4
17	9
18	10
19	1
20	0
21	1
22	5
23	16
24	35
25	34
26	1
27	0
28	1
29	6
30	25
31	84
32	195
33	162
34	1
35	0
36	1
37	7
38	36
39	165
40	644
41	1635
42	1090
43	1
44	0
45	1
46	8
47	49
48	286
49	1605
50	7620
51	21187
52	10370
53	1
54	0
55	1
56	9
57	64
58	455
59	3366
60	24389
61	143748
62	430467
63	139522
64	1
65	0
66	1
67	10
68	81
69	680
70	6279
71	62310
72	599685
73	4412164
74	13812483
75	2654722
76	1
77	0
78	1
79	11
80	100
81	969
82	10760
83	136871
84	1882054
85	24413445
86	223233540
87	702219779
88	71435266
89	1
90	0

[1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 4, 1, 0, 1, 4, 9, 10, 1, 0, 1, 5, 16, 35, 34, 1, 0, 1, 6, 25, 84, 195, 162, 1, 0, 1, 7, 36, 165, 644, 1635, 1090, 1, 0, 1, 8, 49, 286, 1605, 7620, 21187, 10370, 1, 0, 1, 9, 64, 455, 3366, 24389, 143748, 430467, 139522, 1, 0, 1, 10, 81, 680, 6279, 62310, 599685, 4412164, 13812483, 2654722, 1, 0, 1, 11, 100, 969, 10760, 136871, 1882054, 24413445, 223233540, 702219779, 71435266, 1, 0]

cp's OEIS Frontend

A337161 Square array read by antidiagonals: T(n,k) is the number of simple labeled graphs G with vertex set V(G) = {v_1,...,v_n} along with a (coloring) function C:V(G) ->[k] such that v_i adjacent to v_j implies C(v_i) != C(v_j) and i implies C(v_i) <= C(v_j); n>=0, k>=0.

Table of values

List of values