Number of nX5 0..1 arrays with every element equal to 2 or 3 king-move adjacent elements, with upper left element zero.

A297811

Number of nX5 0..1 arrays with every element equal to 2 or 3 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =8a(2) =0a(3) =13a(4) =24a(5) =41a(6) =39a(7) =109a(8) =216a(9) =471a(10) =883a(11) =1826a(12) =3771a(13) =7957a(14) =16180a(15) =33265a(16) =68409a(17) =141908a(18) =292327a(19) =602447a(20) =1240608a(21) =2561035a(22) =5282041a(23) =10893334a(24) =22455433a(25) =46313241a(26) =95513864a(27) =196987195a(28) =406204281a(29) =837692722

External references