Number of orbits of length n under the full 15-shift (whose periodic points are counted by A001024).

A060218

Number of orbits of length n under the full 15-shift (whose periodic points are counted by A001024).

Terms

    a(0) =15a(1) =105a(2) =1120a(3) =12600a(4) =151872a(5) =1897840a(6) =24408480a(7) =320355000a(8) =4271484000a(9) =57664963104a(10) =786341441760

External references