Number of 3Xn 0..3 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
A231286
Number of 3Xn 0..3 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero.
Terms
- a(0) =0a(1) =0a(2) =8a(3) =76a(4) =834a(5) =9488a(6) =105962a(7) =1179364a(8) =13125298a(9) =146097624a(10) =1626238194a(11) =18101813556a(12) =201493039018
External references
- oeis: A231286