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.
%I A349499 #8 Nov 21 2021 05:09:06 %S A349499 2,7,10,14,19,22,56,59,60,63,65,66,67,68,69,70,76,77,81,104,109,113, %T A349499 114,123,125,137,138,154,155,164,171,184,185,187,190,195,199,210,217, %U A349499 221,230,232,236,248,251,255,257,274,276,280,281,282,290,293,295,301,306 %N A349499 Numbers k such that A349474(k) = A349474(k+1). %H A349499 Amiram Eldar, <a href="/A349499/b349499.txt">Table of n, a(n) for n = 1..10000</a> %e A349499 2 is a term since A349474(2) = A349474(3) = 2. %e A349499 7 is a term since A349474(7) = A349474(8) = 3. %t A349499 c[n_] := Length @ ContinuedFraction[DivisorSigma[0, n]/DivisorSigma[-1, n]]; Select[Range[350], c[#] == c[# + 1] &] %Y A349499 Cf. A349473, A349474. %K A349499 nonn %O A349499 1,1 %A A349499 _Amiram Eldar_, Nov 20 2021