A220062 - cp's OEIS frontend

A220062 Number A(n,k) of n length words over k-ary alphabet, where neighboring letters are neighbors in the alphabet; 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	0
9	0
10	1
11	3
12	2
13	0
14	0
15	1
16	4
17	4
18	2
19	0
20	0
21	1
22	5
23	6
24	6
25	2
26	0
27	0
28	1
29	6
30	8
31	10
32	8
33	2
34	0
35	0
36	1
37	7
38	10
39	14
40	16
41	12
42	2
43	0
44	0
45	1
46	8
47	12
48	18
49	24
50	26
51	16
52	2
53	0
54	0
55	1
56	9
57	14
58	22
59	32
60	42
61	42
62	24
63	2
64	0
65	0
66	1
67	10
68	16
69	26
70	40
71	58
72	72
73	68
74	32
75	2
76	0
77	0

[1, 1, 0, 1, 1, 0, 1, 2, 0, 0, 1, 3, 2, 0, 0, 1, 4, 4, 2, 0, 0, 1, 5, 6, 6, 2, 0, 0, 1, 6, 8, 10, 8, 2, 0, 0, 1, 7, 10, 14, 16, 12, 2, 0, 0, 1, 8, 12, 18, 24, 26, 16, 2, 0, 0, 1, 9, 14, 22, 32, 42, 42, 24, 2, 0, 0, 1, 10, 16, 26, 40, 58, 72, 68, 32, 2, 0, 0]

cp's OEIS Frontend

A220062 Number A(n,k) of n length words over k-ary alphabet, where neighboring letters are neighbors in the alphabet; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

List of values

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

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

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