Number of nX3 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).
A230063
Number of nX3 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).
Terms
- a(0) =0a(1) =9a(2) =45a(3) =441a(4) =3645a(5) =31329a(6) =266805a(7) =2277081a(8) =19424205a(9) =165714129a(10) =1413721125a(11) =12060652041a(12) =102890947005a(13) =877775988609
External references
- oeis: A230063