Number of nX6 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
A301997
Number of nX6 0..1 arrays with every element equal to 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =50a(2) =309a(3) =2036a(4) =14016a(5) =100176a(6) =729297a(7) =5333386a(8) =39000114a(9) =285003038a(10) =2082142574a(11) =15211180773a(12) =111130989409a(13) =811933398770
External references
- oeis: A301997