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 A331670 #6 Feb 07 2020 05:24:09 %S A331670 1,1,1,112,30049,5026070,101309269018 %N A331670 First step in Recamán's sequence (A005132) at which there are n consecutive addition steps in a row. %e A331670 A005132(111)=40, A005132(112)=152, A005132(113)=265, A005132(114)=379, A005132(115)=494 - four increasing terms starting from #111, so a(4) = 111. %Y A331670 Cf. A005132, A108840. %K A331670 nonn,more %O A331670 1,4 %A A331670 _Jud McCranie_, Jan 24 2020