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

A304297

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

Terms

    a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =14a(6) =22a(7) =33a(8) =57a(9) =97a(10) =159a(11) =255a(12) =432a(13) =724a(14) =1171a(15) =1951a(16) =3254a(17) =5363a(18) =8858a(19) =14694a(20) =24381a(21) =40260a(22) =66642a(23) =110538a(24) =182870a(25) =302621a(26) =501272a(27) =830095a(28) =1374018a(29) =2274695

External references