Number of nX4 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.
A282965
Number of nX4 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.
Terms
- a(0) =1a(1) =17a(2) =309a(3) =3635a(4) =35870a(5) =346172a(6) =3128641a(7) =27439857a(8) =234322382a(9) =1959091067a(10) =16107499923a(11) =130573017760
External references
- oeis: A282965