Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

A316550

Number of nX6 0..1 arrays with every element unequal to 0, 1, 3, 4, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =13a(1) =61a(2) =69a(3) =187a(4) =621a(5) =1811a(6) =5265a(7) =17004a(8) =54443a(9) =174625a(10) =570128a(11) =1895824a(12) =6316710a(13) =21041042a(14) =70427761a(15) =236421633a(16) =794054630a(17) =2667992733a(18) =8973021817a(19) =30195493472a(20) =101625420906a(21) =342080623297

External references