A331562 - cp's OEIS frontend

A331562 Number A(n,k) of sequences with k copies each of 1,2,...,n avoiding absolute differences between adjacent elements larger than one; square array A(n,k), n>=0, k>=0, read by antidiagonals.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	2
9	1
10	1
11	1
12	6
13	2
14	1
15	1
16	1
17	20
18	12
19	2
20	1
21	1
22	1
23	70
24	92
25	26
26	2
27	1
28	1
29	1
30	252
31	780
32	506
33	48
34	2
35	1
36	1
37	1
38	924
39	7002
40	11482
41	2288
42	86
43	2
44	1
45	1
46	1
47	3432
48	65226
49	284002
50	135040
51	10010
52	148
53	2
54	1
55	1
56	1
57	12870
58	623576
59	7426610
60	8956752
61	1543862
62	41618
63	250
64	2
65	1

[1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 6, 2, 1, 1, 1, 20, 12, 2, 1, 1, 1, 70, 92, 26, 2, 1, 1, 1, 252, 780, 506, 48, 2, 1, 1, 1, 924, 7002, 11482, 2288, 86, 2, 1, 1, 1, 3432, 65226, 284002, 135040, 10010, 148, 2, 1, 1, 1, 12870, 623576, 7426610, 8956752, 1543862, 41618, 250, 2, 1]

cp's OEIS Frontend

A331562 Number A(n,k) of sequences with k copies each of 1,2,...,n avoiding absolute differences between adjacent elements larger than one; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values