Number of nX4 binary arrays with an element zero only if there are an even number of ones to its left and an even number of ones above it.

A183316

Number of nX4 binary arrays with an element zero only if there are an even number of ones to its left and an even number of ones above it.

Terms

    a(0) =8a(1) =27a(2) =124a(3) =480a(4) =1975a(5) =7833a(6) =31428a(7) =125103a(8) =498825a(9) =1985956a(10) =7906167a(11) =31469417a(12) =125232138a(13) =498389829a(14) =1983161935a(15) =7891800110a(16) =31402125248a(17) =124956937711a(18) =497214816218

External references