A186122 - cp's OEIS frontend

A186122 Number of (n+1)X4 binary arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.

n	a(n)
1	18
2	94
3	262
4	946
5	2978
6	10502
7	34678
8	120290
9	405274
10	1395998
11	4745006
12	16291134
13	55591062
14	190569866
15	651446994
16	2231635906
17	7634948674
18	26146587758
19	89488608966
20	306421554338
21	1048950425454
22	3591569027638
23	12295940315506

[18, 94, 262, 946, 2978, 10502, 34678, 120290, 405274, 1395998, 4745006, 16291134, 55591062, 190569866, 651446994, 2231635906, 7634948674, 26146587758, 89488608966, 306421554338, 1048950425454, 3591569027638, 12295940315506]

cp's OEIS Frontend

A186122 Number of (n+1)X4 binary arrays with every 2X2 subblock diagonal sum less antidiagonal sum equal to some horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum.

Table of values

List of values