A334715 - cp's OEIS frontend

A334715 A(n,k) = !n + [n > 0] * (k * n!), where !n = A000166(n) is subfactorial of n and [] is an Iverson bracket; square array A(n,k), n>=0, k>=0, read by antidiagonals.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	1
6	1
7	2
8	3
9	2
10	1
11	3
12	5
13	8
14	9
15	1
16	4
17	7
18	14
19	33
20	44
21	1
22	5
23	9
24	20
25	57
26	164
27	265
28	1
29	6
30	11
31	26
32	81
33	284
34	985
35	1854
36	1
37	7
38	13
39	32
40	105
41	404
42	1705
43	6894
44	14833
45	1
46	8
47	15
48	38
49	129
50	524
51	2425
52	11934
53	55153
54	133496
55	1
56	9
57	17
58	44
59	153
60	644
61	3145
62	16974
63	95473
64	496376
65	1334961

[1, 1, 0, 1, 1, 1, 1, 2, 3, 2, 1, 3, 5, 8, 9, 1, 4, 7, 14, 33, 44, 1, 5, 9, 20, 57, 164, 265, 1, 6, 11, 26, 81, 284, 985, 1854, 1, 7, 13, 32, 105, 404, 1705, 6894, 14833, 1, 8, 15, 38, 129, 524, 2425, 11934, 55153, 133496, 1, 9, 17, 44, 153, 644, 3145, 16974, 95473, 496376, 1334961]

cp's OEIS Frontend

A334715 A(n,k) = !n + [n > 0] * (k * n!), where !n = A000166(n) is subfactorial of n and [] is an Iverson bracket; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values