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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A206421 Corresponding values of sigma(n) of numbers in A206036. 0
 12, 18, 12, 24, 24, 31, 18, 42, 32, 24, 60, 31, 42, 56, 72, 32, 48, 54, 48, 60, 56, 90, 42, 96, 84, 72, 48, 124, 72, 98, 54, 120, 72, 120, 80, 90, 60, 168, 96, 104, 84, 144, 126, 96, 144, 72, 114, 124, 140, 96, 168, 80, 186, 126, 84, 224, 108, 132, 120, 180 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE a(1) = 12 because sigma(A206036(1)) = sigma(6) = 12. CROSSREFS Cf. A159886 (values k such that sigma(x)= k has more than one solution), A206036 (numbers n such that sigma(n) = sigma(k) has solution for distinct k), A000203. Sequence in context: A243609 A082241 A077294 * A232391 A025491 A091196 Adjacent sequences:  A206418 A206419 A206420 * A206422 A206423 A206424 KEYWORD nonn AUTHOR Jaroslav Krizek, Feb 07 2012 STATUS approved

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.

Last modified August 10 07:57 EDT 2022. Contains 356036 sequences. (Running on oeis4.)