A197311 - cp's OEIS frontend

A197311 Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,1,0,0 for x=0,1,2,3,4.

n	a(n)
1	1
2	0
3	3
4	2
5	9
6	6
7	27
8	18
9	83
10	56
11	257
12	176
13	797
14	556
15	2475
16	1766
17	7699
18	5640
19	23995
20	18106
21	74937
22	58408
23	234541
24	189266
25	735771
26	615834
27	2313757
28	2011340
29	7294375
30	6591454
31	23056393
32	21667064
33	73073221
34	71416640
35	232226565
36	235964308
37	740061147

[1, 0, 3, 2, 9, 6, 27, 18, 83, 56, 257, 176, 797, 556, 2475, 1766, 7699, 5640, 23995, 18106, 74937, 58408, 234541, 189266, 735771, 615834, 2313757, 2011340, 7294375, 6591454, 23056393, 21667064, 73073221, 71416640, 232226565, 235964308, 740061147]

cp's OEIS Frontend

A197311 Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,1,0,0 for x=0,1,2,3,4.

Table of values

List of values