Number of nX5 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.
A302874
Number of nX5 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) =31a(2) =72a(3) =306a(4) =1197a(5) =4849a(6) =23037a(7) =114810a(8) =603229a(9) =3319946a(10) =18585700a(11) =105379875a(12) =603107047a(13) =3467522323a(14) =19998520262a(15) =115602617979a(16) =669078024352
External references
- oeis: A302874