Number of nX3 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
A230246
Number of nX3 0..3 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
Terms
- a(0) =0a(1) =6a(2) =34a(3) =514a(4) =5838a(5) =64838a(6) =722386a(7) =8040426a(8) =89496950a(9) =996201406a(10) =11088801786a(11) =123430533890
External references
- oeis: A230246