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!)
A083373 2n is equal to the sum of its divisors after the digits have been sorted in descending order (zeros dropped). 0

%I

%S 6,37,1212,1530,5055,37680,98918163,149308749,250094358

%N 2n is equal to the sum of its divisors after the digits have been sorted in descending order (zeros dropped).

%e a(3)=1212 because the divisors of 1212 are [1, 2, 3, 4, 6, 12, 101, 202, 303, 404, 606, 1212] and 1+2+3+4+6+21+11+22+33+44+66+2211 = 2424 = 2*1212.

%K base,more,nonn

%O 1,1

%A _Jason Earls_, Jun 11 2003

%E 98918163, 149308749, 250094358 from _Sean A. Irvine_, Nov 19 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 May 18 23:31 EDT 2022. Contains 353826 sequences. (Running on oeis4.)