Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

A299303

Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =2a(1) =52a(2) =223a(3) =1024a(4) =5360a(5) =28374a(6) =144040a(7) =743640a(8) =3857242a(9) =19925599a(10) =102977350a(11) =532709362a(12) =2754912665a(13) =14246433006a(14) =73680910336a(15) =381067786735

External references