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 A281354 #13 Jan 28 2017 14:36:03 %S A281354 2,3,3,5,5,7,7,8,8,9,11,11,13,13,15,15,16,16,17,19,19,20,20,21,23,23, %T A281354 25,25,27,27,28,29,29,31,31,33,33,35,35,37,37,39,39,41,41,43,43,44,44, %U A281354 45,47,47,49,49,50,50,51,52,52,53,55,55,57,57,59,61,61,63,63,64,64,65,67,67,68,68,69,71,71 %N A281354 a(n) = smallest missing number after A280985(n) has been computed. %C A281354 Since A280985 and A127202 agree for the first 719 terms, for n < 719 this is also the smallest missing number after A127202(n) has been computed. %H A281354 Rémy Sigrist, <a href="/A281354/b281354.txt">Table of n, a(n) for n = 1..10000</a> %Y A281354 Cf. A127202, A280985. %K A281354 nonn %O A281354 1,1 %A A281354 _N. J. A. Sloane_, Jan 21 2017