Number of n X 4 0..1 arrays with every element equal to 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

A298920

Number of n X 4 0..1 arrays with every element equal to 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =8a(2) =2a(3) =3a(4) =7a(5) =6a(6) =9a(7) =20a(8) =22a(9) =35a(10) =59a(11) =90a(12) =145a(13) =240a(14) =378a(15) =611a(16) =991a(17) =1598a(18) =2585a(19) =4188a(20) =6766a(21) =10947a(22) =17715a(23) =28658a(24) =46369a(25) =75032a(26) =121394a(27) =196419a(28) =317815a(29) =514230

External references