Number of nX5 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X6 binary array having a sum of two, with rows and columns of the latter in lexicographically nondecreasing order.
A227102
Number of nX5 0,1 arrays indicating 2X2 subblocks of some larger (n+1)X6 binary array having a sum of two, with rows and columns of the latter in lexicographically nondecreasing order.
Terms
- a(0) =16a(1) =341a(2) =4444a(3) =60039a(4) =754758a(5) =8638999a(6) =89104481a(7) =828893716a(8) =6983821643a(9) =53621106874a(10) =377769331391
External references
- oeis: A227102