Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

A299216

Number of nX3 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =12a(2) =22a(3) =81a(4) =307a(5) =1201a(6) =5066a(7) =21292a(8) =90443a(9) =387999a(10) =1664166a(11) =7150000a(12) =30748156a(13) =132241210a(14) =568885960a(15) =2447521291a(16) =10530203290a(17) =45306613634a(18) =194935607759a(19) =838730766281

External references