A277666 - cp's OEIS frontend

A277666 Number A(n,k) of n-length words over a k-ary alphabet {a_1,a_2,...,a_k} avoiding consecutive letters a_i, a_{i+1}; square array A(n,k), n>=0, k>=0, read by antidiagonals.

n	a(n)
0	1
1	1
2	0
3	1
4	1
5	0
6	1
7	2
8	1
9	0
10	1
11	3
12	3
13	1
14	0
15	1
16	4
17	7
18	4
19	1
20	0
21	1
22	5
23	13
24	16
25	5
26	1
27	0
28	1
29	6
30	21
31	42
32	37
33	6
34	1
35	0
36	1
37	7
38	31
39	88
40	136
41	86
42	7
43	1
44	0
45	1
46	8
47	43
48	160
49	369
50	440
51	200
52	8
53	1
54	0
55	1
56	9
57	57
58	264
59	826
60	1547
61	1423
62	465
63	9
64	1
65	0
66	1
67	10
68	73
69	406
70	1621
71	4264
72	6486
73	4602
74	1081
75	10
76	1
77	0

[1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 3, 1, 0, 1, 4, 7, 4, 1, 0, 1, 5, 13, 16, 5, 1, 0, 1, 6, 21, 42, 37, 6, 1, 0, 1, 7, 31, 88, 136, 86, 7, 1, 0, 1, 8, 43, 160, 369, 440, 200, 8, 1, 0, 1, 9, 57, 264, 826, 1547, 1423, 465, 9, 1, 0, 1, 10, 73, 406, 1621, 4264, 6486, 4602, 1081, 10, 1, 0]

cp's OEIS Frontend

A277666 Number A(n,k) of n-length words over a k-ary alphabet {a_1,a_2,...,a_k} avoiding consecutive letters a_i, a_{i+1}; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values