Number of nX6 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302307
Number of nX6 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =13a(1) =113a(2) =121a(3) =663a(4) =1595a(5) =5715a(6) =18990a(7) =73663a(8) =312122a(9) =1468425a(10) =7435015a(11) =39732589a(12) =220413622a(13) =1252325938a(14) =7234253383a(15) =42220737525a(16) =248052641109
External references
- oeis: A302307