Number of 3Xn 0..6 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 7, and upper left element zero.
A230687
Number of 3Xn 0..6 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 7, and upper left element zero.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =68a(6) =1500a(7) =18468a(8) =199358a(9) =2097950a(10) =21391538a(11) =214036364a(12) =2120258590a(13) =20866289330a(14) =204450476448
External references
- oeis: A230687