Number of nX4 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once.
A269190
Number of nX4 0..3 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling three no more than once.
Terms
- a(0) =216a(1) =4476a(2) =115452a(3) =2817548a(4) =67134380a(5) =1567933676a(6) =36068275268a(7) =819789099172
External references
- oeis: A269190