Number of n X 4 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302885
Number of n X 4 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =20a(2) =53a(3) =238a(4) =1102a(5) =5570a(6) =28594a(7) =149206a(8) =788373a(9) =4194079a(10) =22418762a(11) =120168046a(12) =645271922a(13) =3468733058a(14) =18659308842a(15) =100416125479a(16) =540536282078
External references
- oeis: A302885