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 A172105 #8 Aug 16 2025 15:31:25 %S A172105 1,2,3,6,7,13,27,37,38 %N A172105 Numbers k such that k-th partial sum of A167020 - k-th partial sum of A167021 = 0 (or A172103(k) - A172104(k) = 0). %C A172105 No further terms between 38 and 1500000. [From _R. J. Mathar_, May 02 2010] %Y A172105 Cf. A167020, A167021, A172103, A172104. %K A172105 nonn,more %O A172105 1,2 %A A172105 _Juri-Stepan Gerasimov_, Jan 25 2010 %E A172105 Corrected (13 inserted, terms in the range 297 to 316 removed) by _R. J. Mathar_, May 02 2010