Number of n X 3 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A317038

Number of n X 3 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =9a(2) =14a(3) =33a(4) =90a(5) =204a(6) =527a(7) =1547a(8) =4509a(9) =13756a(10) =44003a(11) =143486a(12) =475482a(13) =1595723a(14) =5396281a(15) =18338839a(16) =62514686a(17) =213545607a(18) =730447004a(19) =2500465998a(20) =8563969469a(21) =29341435507a(22) =100548091093a(23) =344604361018

External references