A143461 - cp's OEIS frontend

A143461 Square array A(n,k) of numbers of length n quaternary words with at least k 0-digits between any other digits (n,k >= 0), read by antidiagonals.

n	a(n)
0	1
1	1
2	4
3	1
4	4
5	16
6	1
7	4
8	7
9	64
10	1
11	4
12	7
13	19
14	256
15	1
16	4
17	7
18	10
19	40
20	1024
21	1
22	4
23	7
24	10
25	22
26	97
27	4096
28	1
29	4
30	7
31	10
32	13
33	43
34	217
35	16384
36	1
37	4
38	7
39	10
40	13
41	25
42	73
43	508
44	65536
45	1
46	4
47	7
48	10
49	13
50	16
51	46
52	139
53	1159
54	262144
55	1
56	4
57	7
58	10
59	13
60	16
61	28
62	76
63	268
64	2683
65	1048576
66	1
67	4
68	7
69	10
70	13
71	16
72	19
73	49
74	115
75	487
76	6160
77	4194304

[1, 1, 4, 1, 4, 16, 1, 4, 7, 64, 1, 4, 7, 19, 256, 1, 4, 7, 10, 40, 1024, 1, 4, 7, 10, 22, 97, 4096, 1, 4, 7, 10, 13, 43, 217, 16384, 1, 4, 7, 10, 13, 25, 73, 508, 65536, 1, 4, 7, 10, 13, 16, 46, 139, 1159, 262144, 1, 4, 7, 10, 13, 16, 28, 76, 268, 2683, 1048576, 1, 4, 7, 10, 13, 16, 19, 49, 115, 487, 6160, 4194304]

cp's OEIS Frontend

A143461 Square array A(n,k) of numbers of length n quaternary words with at least k 0-digits between any other digits (n,k >= 0), read by antidiagonals.

Table of values

List of values