Number of (n+1) X (2+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0001 0011 0101 or 1111.
A259518
Number of (n+1) X (2+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0001 0011 0101 or 1111.
Terms
- a(0) =38a(1) =208a(2) =1122a(3) =6100a(4) =33162a(5) =180370a(6) =981092a(7) =5336678a(8) =29029222a(9) =157906912a(10) =858948710a(11) =4672329330a(12) =25415560796a(13) =138250260726a(14) =752024907134
External references
- oeis: A259518