A066847 Integers of the form m! + n!, m and n = positive integers.

2, 3, 4, 7, 8, 12, 25, 26, 30, 48, 121, 122, 126, 144, 240, 721, 722, 726, 744, 840, 1440, 5041, 5042, 5046, 5064, 5160, 5760, 10080, 40321, 40322, 40326, 40344, 40440, 41040, 45360, 80640, 362881, 362882, 362886, 362904

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Example

30 is included because 30 = 3! + 4!.

Mathematica

Union[Total/@Tuples[Range[10]!, 2]] (* Harvey P. Dale, May 04 2011 *)

Crossrefs

Sequence in context: A211659 A301806 A374057 * A370121 A057887 A202116

Adjacent sequences: A066844 A066845 A066846 * A066848 A066849 A066850

Keyword

easy,nonn

Author

Leroy Quet, Jan 20 2002

Status

approved