Number of nX3 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero.
A230332
Number of nX3 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero.
Terms
- a(0) =0a(1) =34a(2) =534a(3) =9162a(4) =157200a(5) =2696012a(6) =46237080a(7) =792976550a(8) =13599731534a(9) =233238537338
External references
- oeis: A230332