Number of n X 4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,2,3,0,4 for x=0,1,2,3,4.
A196574
Number of n X 4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,2,3,0,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =7a(2) =37a(3) =145a(4) =971a(5) =4787a(6) =24837a(7) =134167a(8) =700787a(9) =3689127a(10) =19500651a(11) =102652203a(12) =541025795a(13) =2852510953a(14) =15032123527a(15) =79230081799a(16) =417611039473
External references
- oeis: A196574