Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302879
Number of 4Xn 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =10a(2) =37a(3) =95a(4) =306a(5) =1442a(6) =5871a(7) =21832a(8) =89400a(9) =411068a(10) =1770984a(11) =7282331a(12) =31250009a(13) =139497681a(14) =604440671a(15) =2568314200a(16) =11116864094a(17) =48801680753a(18) =211521061837a(19) =909708854837
External references
- oeis: A302879