Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

A299387

Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =64a(1) =301a(2) =115a(3) =448a(4) =1112a(5) =1852a(6) =4929a(7) =11412a(8) =24191a(9) =59037a(10) =137098a(11) =312216a(12) =728670a(13) =1685304a(14) =3910660a(15) =9066080a(16) =21026361a(17) =48798033a(18) =113138469a(19) =262500850a(20) =609384725a(21) =1413457638a(22) =3280851818a(23) =7614781353a(24) =17670627214a(25) =41015215732a(26) =95198485725

External references