Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302418
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =264a(2) =441a(3) =994a(4) =3553a(5) =11998a(6) =33596a(7) =98387a(8) =295578a(9) =894679a(10) =2695046a(11) =8079516a(12) =24238223a(13) =72918140a(14) =219274670a(15) =658972343a(16) =1980525063a(17) =5953451985a(18) =17896489116a(19) =53796843601a(20) =161709612431a(21) =486093332387
External references
- oeis: A302418