A221515 - cp's OEIS frontend

A221515 T(n,k)=Number of 0..k arrays of length n with each element differing from at least one neighbor by 2 or more, starting with 0.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	0
8	2
9	1
10	0
11	0
12	3
13	3
14	2
15	0
16	0
17	4
18	7
19	12
20	3
21	0
22	0
23	5
24	13
25	36
26	30
27	5
28	0
29	0
30	6
31	21
32	80
33	130
34	89
35	8
36	0
37	0
38	7
39	31
40	150
41	381
42	532
43	248
44	13
45	0
46	0
47	8
48	43
49	252
50	884
51	1970
52	2088
53	706
54	21
55	0
56	0
57	9
58	57
59	392
60	1765
61	5513
62	9940
63	8304
64	1995
65	34
66	0
67	0
68	10
69	73
70	576
71	3174
72	12872
73	33860

[0, 0, 0, 0, 1, 0, 0, 2, 1, 0, 0, 3, 3, 2, 0, 0, 4, 7, 12, 3, 0, 0, 5, 13, 36, 30, 5, 0, 0, 6, 21, 80, 130, 89, 8, 0, 0, 7, 31, 150, 381, 532, 248, 13, 0, 0, 8, 43, 252, 884, 1970, 2088, 706, 21, 0, 0, 9, 57, 392, 1765, 5513, 9940, 8304, 1995, 34, 0, 0, 10, 73, 576, 3174, 12872, 33860]

cp's OEIS Frontend

A221515 T(n,k)=Number of 0..k arrays of length n with each element differing from at least one neighbor by 2 or more, starting with 0.

Table of values

List of values