Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.

A297990

Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =166a(2) =424a(3) =1446a(4) =5100a(5) =18189a(6) =62390a(7) =213997a(8) =735000a(9) =2520806a(10) =8673171a(11) =29895212a(12) =103062319a(13) =355448168a(14) =1226378689a(15) =4232831248a(16) =14614818621a(17) =50474934066a(18) =174362780682a(19) =602441004444

External references