Number of 5Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
A301954
Number of 5Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =34a(2) =342a(3) =7326a(4) =120815a(5) =2406169a(6) =45013365a(7) =854043977a(8) =16129710295a(9) =305221439281
External references
- oeis: A301954