Number of permutations of [n] with nonincreasing cycle sizes.
A286071
Number of permutations of [n] with nonincreasing cycle sizes.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =19a(5) =85a(6) =496a(7) =3229a(8) =25117a(9) =215225a(10) =2100430a(11) =22187281a(12) =261228199a(13) =3284651245a(14) =45163266604a(15) =659277401525
External references
- oeis: A286071