Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302420
Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =64a(1) =2785a(2) =4754a(3) =12442a(4) =69537a(5) =518736a(6) =2342685a(7) =10963076a(8) =58365289a(9) =307637792a(10) =1559714448a(11) =8017915598a(12) =41579079715a(13) =214421759223
External references
- oeis: A302420