The number of divisors d of n! such that the symmetric group on n letters contains no elements of order d.

A211392

The number of divisors d of n! such that the symmetric group on n letters contains no elements of order d.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =4a(4) =10a(5) =24a(6) =51a(7) =85a(8) =146a(9) =254a(10) =520a(11) =769a(12) =1557a(13) =2561a(14) =3997a(15) =5333a(16) =10705a(17) =14633a(18) =29315a(19) =40970a(20) =60722a(21) =95912a(22) =191902a(23) =242769a(24) =339909a(25) =532088a(26) =677224a(27) =917112a(28) =1834373a(29) =2332596

External references