Number of n X 2 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value 2-x(i,j).
A230170
Number of n X 2 0..2 arrays x(i,j) with each element horizontally, vertically, diagonally or antidiagonally next to at least one element with value 2-x(i,j).
Terms
- a(0) =3a(1) =27a(2) =193a(3) =1407a(4) =10211a(5) =73417a(6) =530771a(7) =3841171a(8) =27770777a(9) =200748959a(10) =1451396131a(11) =10493696945a(12) =75868350707a(13) =548518150083
External references
- oeis: A230170