Number of endofunctions on [n] whose cycle lengths are divisors of 6.

A246526

Number of endofunctions on [n] whose cycle lengths are divisors of 6.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =27a(4) =250a(5) =2951a(6) =42552a(7) =726097a(8) =14318908a(9) =320511105a(10) =8029282096a(11) =222590246099

External references