login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A163752 Generalized factorions: numbers which are equal to the sum of the factorials of some or all of their digits in base 10. 0

%I #5 Mar 25 2022 18:16:43

%S 1,2,24,145,5760,5761,5762,40328,40585,362904,367920,367921,367922,

%T 367926,367928,367932,367944

%N Generalized factorions: numbers which are equal to the sum of the factorials of some or all of their digits in base 10.

%C Generalized factorions include factorions (A014080), near-factorions (A163576), and "not-so-near-factorions" such as 362904, which is equal to 9! + 4!.

%e 367932 = 3! + 7! + 9! + 3!.

%t Select[Range[370000],MemberQ[Total[#!]&/@Rest[Subsets[ IntegerDigits[ #]]], #]&] (* _Harvey P. Dale_, Mar 20 2017 *)

%Y Superset of A014080 and A163576.

%K base,fini,full,nonn

%O 1,2

%A Berend Jan van der Zwaag (b.j.vanderzwaag(AT)utwente.nl), Aug 03 2009

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)