Number of permutations of [n] whose cycle lengths avoid primes.

A329944

Number of permutations of [n] whose cycle lengths avoid primes.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =7a(5) =31a(6) =211a(7) =1051a(8) =10081a(9) =107857a(10) =1227241a(11) =8969401a(12) =108817831a(13) =1173362191a(14) =19426473067a(15) =320062090531

External references