Number of nX4 0..1 arrays with every element equal to 0, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

A298571

Number of nX4 0..1 arrays with every element equal to 0, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =8a(2) =2a(3) =3a(4) =41a(5) =38a(6) =70a(7) =374a(8) =664a(9) =1327a(10) =4668a(11) =10974a(12) =24373a(13) =70732a(14) =181600a(15) =434550a(16) =1167179a(17) =3047993a(18) =7603212a(19) =19855359a(20) =51764205a(21) =131757754a(22) =340961976a(23) =885345035a(24) =2273546860a(25) =5869335895a(26) =15197343665a(27) =39165876002a(28) =101074648923a(29) =261308007058

External references