Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300637
Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =5a(1) =90a(2) =253a(3) =1036a(4) =4418a(5) =23097a(6) =124439a(7) =666648a(8) =3654138a(9) =20086516a(10) =110532082a(11) =609984097a(12) =3368944619a(13) =18619630952a(14) =102941658552a(15) =569134936442
External references
- oeis: A300637