Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A301320
Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =138a(2) =293a(3) =726a(4) =1649a(5) =3649a(6) =8035a(7) =17751a(8) =39436a(9) =88008a(10) =197077a(11) =442264a(12) =993792a(13) =2234792a(14) =5027626a(15) =11313294a(16) =25460611a(17) =57302948a(18) =128973323a(19) =290288905a(20) =653378578a(21) =1470622946a(22) =3310082320a(23) =7450351492a(24) =16769302128a(25) =37744471436
External references
- oeis: A301320