Number of nX7 0..1 arrays with every element equal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300371
Number of nX7 0..1 arrays with every element equal to 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =6a(2) =16a(3) =39a(4) =270a(5) =1592a(6) =12042a(7) =75739a(8) =490425a(9) =3084820a(10) =19634393a(11) =129519588a(12) =829432020a(13) =5341866361a(14) =34667291397a(15) =223006749453
External references
- oeis: A300371