Number of factorizations of permutations of n letters into cycles in nondecreasing length order.

A007841

Number of factorizations of permutations of n letters into cycles in nondecreasing length order.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =11a(4) =56a(5) =324a(6) =2324a(7) =18332a(8) =167544a(9) =1674264a(10) =18615432a(11) =223686792a(12) =2937715296a(13) =41233157952a(14) =623159583552

External references