Number of (n+1)X(5+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 0101 or 1111.
A259521
Number of (n+1)X(5+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0001 0011 0101 or 1111.
Terms
- a(0) =1204a(1) =33162a(2) =851604a(3) =22453286a(4) =589476522a(5) =15503669216a(6) =407656116320
External references
- oeis: A259521