Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1 X 8 which is flat, i.e., with all blocks in parallel position.

A123812

Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1 X 8 which is flat, i.e., with all blocks in parallel position.

Terms

    a(0) =1a(1) =8a(2) =145a(3) =2884a(4) =62517a(5) =1404472a(6) =32430749a(7) =763219988a(8) =18231473349

External references