Number of nX3 0..1 arrays with each 1 adjacent to 0, 3 or 5 king-move neighboring 1s.

A296829

Number of nX3 0..1 arrays with each 1 adjacent to 0, 3 or 5 king-move neighboring 1s.

Terms

    a(0) =5a(1) =14a(2) =43a(3) =132a(4) =402a(5) =1230a(6) =3755a(7) =11475a(8) =35054a(9) =107091a(10) =327180a(11) =999540a(12) =3053674a(13) =9329255a(14) =28501469a(15) =87074210a(16) =266018951a(17) =812707666a(18) =2482885810a(19) =7585415532a(20) =23174032657a(21) =70798497487a(22) =216295031546a(23) =660798311057

External references