A208086 - cp's OEIS frontend

A208086 Number of 4 X (n+1) 0..1 arrays with every 2 X 2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..1 introduced in row major order.

n	a(n)
1	24
2	56
3	134
4	344
5	888
6	2318
7	6056
8	15848
9	41478
10	108584
11	284264
12	744206
13	1948344
14	5100824
15	13354118
16	34961528
17	91530456
18	239629838
19	627359048
20	1642447304
21	4299982854
22	11257501256
23	29472520904
24	77160061454
25	202007663448

[24, 56, 134, 344, 888, 2318, 6056, 15848, 41478, 108584, 284264, 744206, 1948344, 5100824, 13354118, 34961528, 91530456, 239629838, 627359048, 1642447304, 4299982854, 11257501256, 29472520904, 77160061454, 202007663448]

cp's OEIS Frontend

A208086 Number of 4 X (n+1) 0..1 arrays with every 2 X 2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..1 introduced in row major order.

Table of values

List of values