Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

A316172

Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =2a(1) =10a(2) =34a(3) =72a(4) =331a(5) =1425a(6) =5297a(7) =18573a(8) =84658a(9) =341907a(10) =1283578a(11) =5514353a(12) =22476568a(13) =88705477a(14) =368744149a(15) =1503571517a(16) =6058762423a(17) =24862968921a(18) =101355031741a(19) =411492561255

External references