Number of nX6 0..1 arrays with every element equal to 1, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.
A301949
Number of nX6 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) =5a(1) =169a(2) =4070a(3) =98839a(4) =2406169a(5) =58609226a(6) =1427656268a(7) =34776685046a(8) =847137052736
External references
- oeis: A301949