Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303185
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =16a(1) =264a(2) =547a(3) =1302a(4) =5613a(5) =24751a(6) =88153a(7) =325770a(8) =1253442a(9) =4776102a(10) =18038332a(11) =68413453a(12) =260114810a(13) =987697447a(14) =3748803674a(15) =14235050570a(16) =54059779607a(17) =205275615433a(18) =779466274820
External references
- oeis: A303185