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 A179886 #12 May 26 2025 01:57:05 %S A179886 1,1,7,7,15,15,31,31,39,39,55,55,71,71,111,111,119,119,151,151,175, %T A179886 175,177,177,231,231,239,239,255,255,303,303,311,311,313,313,319,319, %U A179886 329,329,335,335,337,337,345,345,375,375,391,391,393,393,479,479,521,521 %N A179886 Corresponding values of antiharmonic mean B(h) of the numbers k < h such that gcd(k, h) = 1 for numbers h from A179884. %C A179886 Antiharmonic mean B(h) of numbers k such that gcd(k, h) = 1 for numbers h >= 1 and k < h = A053818(n) / A023896(n) = A175505(h) / A175506(h). %F A179886 a(2*n-1) = a(2*n) = A179882(n). - _Amiram Eldar_, May 26 2025 %Y A179886 Cf. A023896, A053818, A175505, A175506. %Y A179886 Cf. A179871, A179872, A179873, A179874, A179875, A179876, A179877, A179878, A179879, A179880, A179882, A179883, A179884, A179885, A179887, A179890, A179891. %K A179886 nonn %O A179886 1,3 %A A179886 _Jaroslav Krizek_, Jul 30 2010, Jul 31 2010 %E A179886 More terms from _Amiram Eldar_, May 26 2025