Number of 4Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
A301953
Number of 4Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =13a(2) =83a(3) =947a(4) =9084a(5) =98839a(6) =1029960a(7) =10839822a(8) =113808922a(9) =1195709047a(10) =12560090528a(11) =131941626696
External references
- oeis: A301953