Number of n X n 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300492
Number of n X n 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =7a(2) =52a(3) =499a(4) =5837a(5) =77582a(6) =1296506a(7) =28067098a(8) =789286221a(9) =28598601331
External references
- oeis: A300492