Number of 7Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302685
Number of 7Xn 0..1 arrays with every element equal to 0, 1, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =64a(1) =22a(2) =29a(3) =121a(4) =257a(5) =1125a(6) =6311a(7) =25139a(8) =96728a(9) =439233a(10) =1942666a(11) =8017639a(12) =34024545a(13) =148137877a(14) =632641084a(15) =2682460593a(16) =11495724321a(17) =49301780598a(18) =210361660516a(19) =898372105583
External references
- oeis: A302685