Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

A298723

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =18a(2) =15a(3) =34a(4) =77a(5) =230a(6) =712a(7) =2167a(8) =6694a(9) =20775a(10) =64197a(11) =200062a(12) =624696a(13) =1949420a(14) =6084096a(15) =19000957a(16) =59343184a(17) =185364275a(18) =579116320a(19) =1809395723a(20) =5653433396a(21) =17664869660a(22) =55197920461a(23) =172481319644a(24) =538973897693

External references