Number of (n+2)X(7+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically.
A253739
Number of (n+2)X(7+2) 0..1 arrays with every 2X2 and 3X3 subblock diagonal sum minus antidiagonal sum unequal to its neighbors horizontally and vertically.
Terms
- a(0) =222820a(1) =148328a(2) =243796a(3) =922004a(4) =3230352a(5) =11094376a(6) =40265740a(7) =158864740a(8) =622829668a(9) =2349461712a(10) =8925387720a(11) =34829656816a(12) =135741728872a(13) =519828704980
External references
- oeis: A253739