Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

A298556

Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =2a(1) =52a(2) =219a(3) =956a(4) =4304a(5) =19843a(6) =90153a(7) =411915a(8) =1883419a(9) =8606261a(10) =39318528a(11) =179689129a(12) =821125409a(13) =3752220577a(14) =17146552549a(15) =78354832275a(16) =358057427672

External references