A221683 - cp's OEIS frontend

A221683 T(n,k)=Number of 0..k arrays of length n with each element differing from at least one neighbor by 1 or less, starting with 0.

n	a(n)
1	0
2	0
3	2
4	0
5	2
6	4
7	0
8	2
9	5
10	8
11	0
12	2
13	5
14	14
15	16
16	0
17	2
18	5
19	20
20	40
21	32
22	0
23	2
24	5
25	26
26	68
27	113
28	64
29	0
30	2
31	5
32	32
33	100
34	241
35	320
36	128
37	0
38	2
39	5
40	38
41	133
42	418
43	844
44	906
45	256
46	0
47	2
48	5
49	44
50	166
51	636
52	1692
53	2966
54	2565
55	512
56	0
57	2
58	5
59	50
60	199
61	891
62	2856
63	6932
64	10413
65	7262
66	1024
67	0
68	2
69	5
70	56
71	232

[0, 0, 2, 0, 2, 4, 0, 2, 5, 8, 0, 2, 5, 14, 16, 0, 2, 5, 20, 40, 32, 0, 2, 5, 26, 68, 113, 64, 0, 2, 5, 32, 100, 241, 320, 128, 0, 2, 5, 38, 133, 418, 844, 906, 256, 0, 2, 5, 44, 166, 636, 1692, 2966, 2565, 512, 0, 2, 5, 50, 199, 891, 2856, 6932, 10413, 7262, 1024, 0, 2, 5, 56, 232]

cp's OEIS Frontend

A221683 T(n,k)=Number of 0..k arrays of length n with each element differing from at least one neighbor by 1 or less, starting with 0.

Table of values

List of values