Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 01010101 or 01010111.
A260130
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 01010101 or 01010111.
Terms
- a(0) =36a(1) =128a(2) =1162a(3) =8292a(4) =89000a(5) =1799114a(6) =39696994a(7) =1187010782a(8) =57609323976
External references
- oeis: A260130