The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A110596 Balanced numbers n such that n mod 12 = 11. 1
 35, 124355, 1739507, 3281663, 3852155, 7649915, 9815195, 10434515, 13321295, 19154135, 19296035, 32807555, 36664595, 41523911, 50329955, 60668135, 69664595, 83338199, 107008811, 123543695, 145960451, 275361359, 321198059, 365269355, 393656879, 407002211 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS For the first 26 terms, the quotient (sigma(n)/phi(n)) is 2 or 3. LINKS Amiram Eldar, Table of n, a(n) for n = 1..6654 (terms below 6.5*10^14, calculated using data from Jud McCranie) MAPLE with(numtheory); BNM11:=[]: for z from 1 to 1 do for n from 1 to 500000 do m:=12*n+11; if sigma(m) mod phi(m) = 0 then BNM11:=[op(BNM11), m] fi; od; od; BNM11; MATHEMATICA Select[Range[10^7], Mod[#, 12] == 11 && Divisible[DivisorSigma[1, #], EulerPhi[#]] &] (* Amiram Eldar, Dec 04 2019 *) CROSSREFS Intersection of A017653 and A020492. Cf. A000010, A000203. Sequence in context: A285388 A212926 A139473 * A286178 A126029 A107736 Adjacent sequences:  A110593 A110594 A110595 * A110597 A110598 A110599 KEYWORD nonn AUTHOR Walter Kehowski, Sep 13 2005 EXTENSIONS a(6)-a(26) from Donovan Johnson, Aug 30 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 1 16:12 EDT 2021. Contains 346393 sequences. (Running on oeis4.)