Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010101.
A260472
Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00010101.
Terms
- a(0) =414a(1) =1085a(2) =4607a(3) =15502a(4) =57524a(5) =228287a(6) =839073a(7) =3095233a(8) =11809031a(9) =44303443a(10) =164909771a(11) =620730229a(12) =2333261427a(13) =8731252217a(14) =32758466355a(15) =123014796659a(16) =461213884299
External references
- oeis: A260472