Number of nX5 0..1 arrays with every element unequal to 0, 1 or 5 king-move adjacent elements, with upper left element zero.

A303716

Number of nX5 0..1 arrays with every element unequal to 0, 1 or 5 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =8a(1) =7a(2) =14a(3) =36a(4) =81a(5) =169a(6) =361a(7) =784a(8) =1681a(9) =3600a(10) =7744a(11) =16641a(12) =35721a(13) =76729a(14) =164836a(15) =354025a(16) =760384a(17) =1633284a(18) =3508129a(19) =7535025a(20) =16184529a(21) =34762816a(22) =74666881a(23) =160376896a(24) =344473600a(25) =739894401a(26) =1589218225a(27) =3413480625a(28) =7331811876a(29) =15747991081

External references