Number of nX3 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A316643

Number of nX3 0..1 arrays with every element unequal to 1, 2, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =11a(2) =15a(3) =33a(4) =117a(5) =247a(6) =599a(7) =1757a(8) =4241a(9) =10783a(10) =29239a(11) =74521a(12) =192273a(13) =508375a(14) =1317567a(15) =3422449a(16) =8971629a(17) =23370303a(18) =60880867a(19) =159136445a(20) =415145389a(21) =1082772235a(22) =2827552935a(23) =7379387077a(24) =19255943685a(25) =50269166119a(26) =131207698359

External references