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.

A249614 Integers that reach the (47360, 29127) cycle described in A234534, after iterations of numerator(sigma(n)/n) = A017665(n).

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%I A249614 #5 Nov 03 2014 10:47:26
%S A249614 22521,28927,28928,29109,29127,30026,30032,35161,35517,38833,38834,
%T A249614 39751,40192,40369,42997,47353,47354,47360,49341,56931,58111,58112,
%U A249614 62961,65792,65919,72303,74389,75345,79107,83727,85024,87513,87871,90368,90447,92637,95235
%N A249614 Integers that reach the (47360, 29127) cycle described in A234534, after iterations of numerator(sigma(n)/n) = A017665(n).
%o A249614 (PARI) finalc(x, v) = {while (!vecsearch(v, x), x = numerator(sigma(x)/x)); x;}
%o A249614 lista(nn, targ=29127) = {v = [8, 127, 512, 29127]; for (i=2, nn, if (finalc(i, v) == targ, print1(i, ", ")););}
%Y A249614 Cf. A017665, A234534, A249611, A249612, A249613.
%K A249614 nonn
%O A249614 1,1
%A A249614 _Michel Marcus_, Nov 02 2014