Number of (n+1) X (3+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0001 0101 or 0111.
A259292
Number of (n+1) X (3+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0001 0101 or 0111.
Terms
- a(0) =66a(1) =322a(2) =1460a(3) =6870a(4) =31774a(5) =148296a(6) =688966a(7) =3208946a(8) =14925572a(9) =69477150a(10) =323263318a(11) =1504482808a(12) =7000820878a(13) =32580094938a(14) =151610945124a(15) =705543988390
External references
- oeis: A259292