Number of (n+1)X(n+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0101.
A259214
Number of (n+1)X(n+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0101.
Terms
- a(0) =7a(1) =23a(2) =66a(3) =183a(4) =487a(5) =1278a(6) =3319a(7) =8591a(8) =22210a(9) =57455a(10) =148815a(11) =386046a(12) =1002991a(13) =2609559a(14) =6797794
External references
- oeis: A259214