Number of nX5 0..1 arrays with every element equal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300424
Number of nX5 0..1 arrays with every element equal to 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =3a(1) =96a(2) =1390a(3) =18205a(4) =240196a(5) =3175101a(6) =41940055a(7) =553858752a(8) =7314644478a(9) =96601163193
External references
- oeis: A300424