Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302960
Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =4a(1) =29a(2) =154a(3) =833a(4) =4527a(5) =24602a(6) =133757a(7) =727293a(8) =3954552a(9) =21502829a(10) =116922075a(11) =635766762a(12) =3457004649a(13) =18797598113a(14) =102212699104a(15) =555785781065
External references
- oeis: A302960