A221524 - cp's OEIS frontend

A221524 T(n,k)=Number of 0..k arrays of length n with each element differing from at least one neighbor by 2 or more.

n	a(n)
1	0
2	0
3	0
4	0
5	2
6	0
7	0
8	6
9	2
10	0
11	0
12	12
13	10
14	4
15	0
16	0
17	20
18	30
19	36
20	6
21	0
22	0
23	30
24	68
25	144
26	94
27	10
28	0
29	0
30	42
31	130
32	400
33	536
34	274
35	16
36	0
37	0
38	56
39	222
40	900
41	1940
42	2172
43	768
44	26
45	0
46	0
47	72
48	350
49	1764
50	5368
51	9982
52	8544
53	2182
54	42
55	0
56	0
57	90
58	520
59	3136
60	12458
61	33380
62	50400
63	33960
64	6170
65	68
66	0
67	0

[0, 0, 0, 0, 2, 0, 0, 6, 2, 0, 0, 12, 10, 4, 0, 0, 20, 30, 36, 6, 0, 0, 30, 68, 144, 94, 10, 0, 0, 42, 130, 400, 536, 274, 16, 0, 0, 56, 222, 900, 1940, 2172, 768, 26, 0, 0, 72, 350, 1764, 5368, 9982, 8544, 2182, 42, 0, 0, 90, 520, 3136, 12458, 33380, 50400, 33960, 6170, 68, 0, 0]

cp's OEIS Frontend

A221524 T(n,k)=Number of 0..k arrays of length n with each element differing from at least one neighbor by 2 or more.

Table of values

List of values