Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

A298323

Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =12a(2) =22a(3) =78a(4) =283a(5) =1097a(6) =4503a(7) =18491a(8) =77067a(9) =323638a(10) =1361118a(11) =5735262a(12) =24183115a(13) =102003399a(14) =430351949a(15) =1815817419a(16) =7662005213a(17) =32331475024a(18) =136431305732a(19) =575712567240

External references