Number of nX3 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

A300133

Number of nX3 0..1 arrays with every element equal to 0, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =1a(2) =16a(3) =17a(4) =88a(5) =209a(6) =673a(7) =1898a(8) =5663a(9) =16545a(10) =48646a(11) =142901a(12) =419539a(13) =1232678a(14) =3619709a(15) =10633075a(16) =31228714a(17) =91726953a(18) =269411911a(19) =791311296a(20) =2324199617a(21) =6826550249a(22) =20050655360a(23) =58891959789a(24) =172975044139a(25) =508055149876

External references