A221463 - cp's OEIS frontend

A221463 T(n,k)=Number of 0..k arrays of length n with each element unequal to at least one neighbor, 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	9
14	12
15	3
16	0
17	5
18	16
19	36
20	32
21	5
22	0
23	6
24	25
25	80
26	135
27	88
28	8
29	0
30	7
31	36
32	150
33	384
34	513
35	240
36	13
37	0
38	8
39	49
40	252
41	875
42	1856
43	1944
44	656
45	21
46	0
47	9
48	64
49	392
50	1728
51	5125
52	8960
53	7371
54	1792
55	34
56	0
57	10
58	81
59	576
60	3087
61	11880
62	30000
63	43264
64	27945
65	4896
66	55
67	0
68	11

[0, 0, 1, 0, 2, 1, 0, 3, 4, 2, 0, 4, 9, 12, 3, 0, 5, 16, 36, 32, 5, 0, 6, 25, 80, 135, 88, 8, 0, 7, 36, 150, 384, 513, 240, 13, 0, 8, 49, 252, 875, 1856, 1944, 656, 21, 0, 9, 64, 392, 1728, 5125, 8960, 7371, 1792, 34, 0, 10, 81, 576, 3087, 11880, 30000, 43264, 27945, 4896, 55, 0, 11]

cp's OEIS Frontend

A221463 T(n,k)=Number of 0..k arrays of length n with each element unequal to at least one neighbor, starting with 0.

Table of values

List of values