A028688 Sorted factorial and k-factorial numbers (numbers of form k-1 excluded).

1, 2, 3, 6, 16, 21, 24, 45, 96, 120, 175, 288, 315, 416, 441, 640, 720, 891, 1200, 1573, 2016, 2535, 2835, 3136, 3825, 4608, 5040, 5491, 6480, 7581, 8800, 9765, 10143, 11616, 11904, 13225, 14976, 16875, 18928, 21141, 23520, 26071, 28800, 31713

Offset

1,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..200 (n = 48..200 corrected by Sean A. Irvine)

Index entries for sequences related to factorial numbers

Formula

A000142 union A028687. - Michel Marcus, Feb 12 2020

Crossrefs

Cf. A000142, A028687.

Sequence in context: A351880 A109162 A215659 * A342027 A343197 A030753

Adjacent sequences: A028685 A028686 A028687 * A028689 A028690 A028691

Keyword

nonn

Author

Olivier Gérard

Status

approved