Number of 6Xn 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302731
Number of 6Xn 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =162a(2) =1079a(3) =941a(4) =4491a(5) =20842a(6) =89121a(7) =286746a(8) =1022779a(9) =4520360a(10) =18491493a(11) =67714259a(12) =259145846a(13) =1045498404a(14) =4177884352a(15) =16077695845a(16) =62395241080a(17) =246809269806a(18) =974367008077
External references
- oeis: A302731