Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

A299182

Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =4a(1) =13a(2) =20a(3) =27a(4) =47a(5) =83a(6) =137a(7) =235a(8) =412a(9) =709a(10) =1228a(11) =2150a(12) =3758a(13) =6578a(14) =11556a(15) =20330a(16) =35805a(17) =63163a(18) =111574a(19) =197307a(20) =349294a(21) =618999a(22) =1098034a(23) =1949511a(24) =3464203a(25) =6160917a(26) =10965304a(27) =19530386a(28) =34810655a(29) =62087577

External references