Number of (n+1)X(4+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 or 0111.
A259423
Number of (n+1)X(4+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 or 0111.
Terms
- a(0) =469a(1) =7695a(2) =123306a(3) =1990133a(4) =32060569a(5) =516880938a(6) =8331704179a(7) =134312969201
External references
- oeis: A259423