Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302620
Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =78a(2) =79a(3) =251a(4) =896a(5) =2669a(6) =8283a(7) =25770a(8) =79047a(9) =246053a(10) =762945a(11) =2360425a(12) =7321295a(13) =22685256a(14) =70286966a(15) =217858158a(16) =675095417a(17) =2092068068a(18) =6483475187a(19) =20091819256a(20) =62264156028a(21) =192956081997a(22) =597964496726
External references
- oeis: A302620