cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A126104 Numbers n not divisible by 6 such that sigma(n) > 3n.

Original entry on oeis.org

40040, 61600, 72800, 80080, 104720, 117040, 123200, 123760, 138320, 141680, 145600, 154000, 160160, 172480, 200200, 209440, 215600, 234080, 246400, 247520, 254800, 261800, 276640, 280280, 283360, 291200, 292600, 308000
Offset: 1

Views

Author

Ant King, Mar 07 2007

Keywords

Crossrefs

Intersection of A047253 and A068403.

Programs

  • Mathematica
    Select[Range[310000], Mod[#, 6] > 1 && DivisorSigma[1, #] > 3# &] (* Amiram Eldar, Dec 03 2019 *)