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.

A140489 Numbers that cannot be part of the trajectory of any number under repeated application of the map: n -> n + second-smallest number that does not divide n, unless they are the first term of the trajectory.

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%I A140489 #2 Mar 31 2012 20:02:06
%S A140489 1,2,3,5,12,15,17,24,27,29,35,36,39,41,45,48,51,53,60,63,65,72,75,77,
%T A140489 84,87,89,95,96,99,101,105,108,111,113,120,123,125,132,135,137,144,
%U A140489 147,149,155,156,159,161,165,168,171,173,180,183,185,192,195
%N A140489 Numbers that cannot be part of the trajectory of any number under repeated application of the map: n -> n + second-smallest number that does not divide n, unless they are the first term of the trajectory.
%Y A140489 Cf. A140485-A140488.
%K A140489 nonn
%O A140489 1,2
%A A140489 _Jacques Tramu_, Jun 25 2008