Number of n X 4 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303098
Number of n X 4 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =2a(1) =46a(2) =431a(3) =4667a(4) =49534a(5) =523578a(6) =5550469a(7) =58797885a(8) =622939052a(9) =6599795867a(10) =69921718286a(11) =740789814624
External references
- oeis: A303098