A227262 - cp's OEIS frontend

A227262 Number of nX5 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X6 binary array having a sum of two or less, with rows and columns of the latter in lexicographically nondecreasing order.

n	a(n)
1	6
2	96
3	1111
4	11932
5	112349
6	937865
7	6961606
8	46364258
9	280471755
10	1557597103
11	8014162577
12	38505244717
13	173924889597
14	742804988619
15	3014292672706
16	11671178123287
17	43274437542484
18	154133395370348
19	528811622382841

[6, 96, 1111, 11932, 112349, 937865, 6961606, 46364258, 280471755, 1557597103, 8014162577, 38505244717, 173924889597, 742804988619, 3014292672706, 11671178123287, 43274437542484, 154133395370348, 528811622382841]

cp's OEIS Frontend

A227262 Number of nX5 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X6 binary array having a sum of two or less, with rows and columns of the latter in lexicographically nondecreasing order.

Table of values

List of values