A208084 - cp's OEIS frontend

A208084 Number of (n+1) 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	8
2	20
3	134
4	156
5	2664
6	1224
7	54504
8	9612
9	1119906
10	75492
11	23025384
12	592920
13	473447592
14	4656852
15	9735152022
16	36575388
17	200177107272
18	287266824
19	4116102713928
20	2256222924
21	84636562515282
22	17720604900
23	1740322886860296

[8, 20, 134, 156, 2664, 1224, 54504, 9612, 1119906, 75492, 23025384, 592920, 473447592, 4656852, 9735152022, 36575388, 200177107272, 287266824, 4116102713928, 2256222924, 84636562515282, 17720604900, 1740322886860296]

cp's OEIS Frontend

A208084 Number of (n+1) 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