Number of nX5 0..4 arrays of sums of 2X2 subblocks of some (n+1)X6 binary array with rows and columns of the latter in lexicographically nondecreasing order.
A226991
Number of nX5 0..4 arrays of sums of 2X2 subblocks of some (n+1)X6 binary array with rows and columns of the latter in lexicographically nondecreasing order.
Terms
- a(0) =28a(1) =729a(2) =11325a(3) =180712a(4) =2601925a(5) =33118416a(6) =369163839a(7) =3630637294a(8) =31856129416a(9) =252318062428
External references
- oeis: A226991