Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303527
Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =10a(2) =39a(3) =103a(4) =359a(5) =1875a(6) =8676a(7) =36072a(8) =166784a(9) =848681a(10) =4105851a(11) =19152575a(12) =92409752a(13) =457395652a(14) =2221962919a(15) =10661835678a(16) =51739845297a(17) =253006224877
External references
- oeis: A303527