Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

A316753

Number of nX4 0..1 arrays with every element unequal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =2a(1) =10a(2) =17a(3) =20a(4) =37a(5) =142a(6) =295a(7) =467a(8) =1217a(9) =3160a(10) =5781a(11) =12289a(12) =31456a(13) =67234a(14) =135899a(15) =318669a(16) =727470a(17) =1526118a(18) =3363597a(19) =7702579a(20) =16806258a(21) =36429770a(22) =81802071a(23) =181935110a(24) =396718472a(25) =877432782a(26) =1955831475a(27) =4304980042a(28) =9473398215

External references