Number of (6+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.
A252538
Number of (6+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.
Terms
- a(0) =649a(1) =964a(2) =1748a(3) =2504a(4) =7136a(5) =13184a(6) =19232a(7) =54656a(8) =102272a(9) =150656a(10) =427520a(11) =805376a(12) =1192448a(13) =3381248a(14) =6391808a(15) =9488384a(16) =26894336a(17) =50929664a(18) =75702272a(19) =214532096a(20) =406618112a(21) =604798976a(22) =1713766400a(23) =3249668096a(24) =4835115008a(25) =13700169728
External references
- oeis: A252538