Number of nX4 0..1 arrays with every element equal to 0, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

A299317

Number of nX4 0..1 arrays with every element equal to 0, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =2a(2) =10a(3) =12a(4) =130a(5) =284a(6) =1557a(7) =5838a(8) =24821a(9) =106561a(10) =449606a(11) =1956599a(12) =8438660a(13) =36764273a(14) =160295868a(15) =700439879a(16) =3066084680a(17) =13431404246a(18) =58893058333a(19) =258348784769

External references