Number of n X 3 0..1 arrays with every element unequal to 0, 1 or 5 king-move adjacent elements, with upper left element zero.

A303714

Number of n X 3 0..1 arrays with every element unequal to 0, 1 or 5 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =3a(2) =5a(3) =8a(4) =14a(5) =24a(6) =40a(7) =68a(8) =116a(9) =196a(10) =332a(11) =564a(12) =956a(13) =1620a(14) =2748a(15) =4660a(16) =7900a(17) =13396a(18) =22716a(19) =38516a(20) =65308a(21) =110740a(22) =187772a(23) =318388a(24) =539868a(25) =915412a(26) =1552188a(27) =2631924a(28) =4462748a(29) =7567124

External references