Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00101011 or 01010101.
A260919
Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00101011 or 01010101.
Terms
- a(0) =36a(1) =68a(2) =401a(3) =2208a(4) =11608a(5) =81848a(6) =971381a(7) =10662976a(8) =181422568a(9) =3460352248a(10) =98952552192
External references
- oeis: A260919