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 A294077 #12 Mar 04 2018 23:41:36 %S A294077 1,1,13,13,157,157,1169312,10990399,1016258233 %N A294077 Smallest integer k such that k + x is an economical number for every x with 0 <= x <= n-1. %C A294077 The values of a(2)-a(10) are given in De Koninck, Luca, 2005. %H A294077 J.-M. De Koninck and F. Luca, <a href="https://www.emis.de/journals/INTEGERS/papers/a5int2003/a5int2003.Abstract.html">On strings of consecutive economical numbers of arbitrary length</a>, Integers: Electronic Journal of Combinatorial Number Theory 5, (2005), #A5. %Y A294077 Cf. A046759, A241034. %K A294077 nonn,more %O A294077 2,3 %A A294077 _Felix Fröhlich_, Feb 07 2018