Number of nX5 0..1 arrays with every element unequal to 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

A305179

Number of nX5 0..1 arrays with every element unequal to 1, 2, 5, 6 or 7 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =8a(2) =14a(3) =13a(4) =64a(5) =137a(6) =140a(7) =668a(8) =1652a(9) =2361a(10) =6578a(11) =18378a(12) =34712a(13) =74220a(14) =198302a(15) =443314a(16) =914478a(17) =2205546a(18) =5256982a(19) =11329144a(20) =25638940a(21) =60932298a(22) =137160172a(23) =305545804a(24) =709266522a(25) =1629634600a(26) =3657579692a(27) =8345325220a(28) =19216257540a(29) =43592320618

External references