A221542 - cp's OEIS frontend

A221542 T(n,k) = Number of 0..k arrays of length n with each element differing from at least one neighbor by something other than 1, starting with 0.

n	a(n)
1	0
2	0
3	1
4	0
5	2
6	1
7	0
8	3
9	4
10	2
11	0
12	4
13	8
14	10
15	3
16	0
17	5
18	14
19	30
20	22
21	5
22	0
23	6
24	22
25	68
26	103
27	54
28	8
29	0
30	7
31	32
32	130
33	303
34	364
35	134
36	13
37	0
38	8
39	44
40	222
41	716
42	1386
43	1276
44	334
45	21
46	0
47	9
48	58
49	350
50	1455
51	4018
52	6311
53	4483
54	822
55	34
56	0
57	10
58	74
59	520
60	2658
61	9665
62	22466
63	28762
64	15740
65	2014
66	55
67	0
68	11

[0, 0, 1, 0, 2, 1, 0, 3, 4, 2, 0, 4, 8, 10, 3, 0, 5, 14, 30, 22, 5, 0, 6, 22, 68, 103, 54, 8, 0, 7, 32, 130, 303, 364, 134, 13, 0, 8, 44, 222, 716, 1386, 1276, 334, 21, 0, 9, 58, 350, 1455, 4018, 6311, 4483, 822, 34, 0, 10, 74, 520, 2658, 9665, 22466, 28762, 15740, 2014, 55, 0, 11]

cp's OEIS Frontend

A221542 T(n,k) = Number of 0..k arrays of length n with each element differing from at least one neighbor by something other than 1, starting with 0.

Table of values

List of values