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 A353980 #7 May 18 2022 10:05:24 %S A353980 3,4,5,7,8,9,24,28,29,31,32,36,180,204,208,209,211,212,213,214,215, %T A353980 216,222,2100,2124,2280,2304,2308,2309,2311,2312,2313,2314,2315,2316, %U A353980 2514,27720,29820,29844,30000,30024,30028,30029,30031,30032,30033,30034,30035 %N A353980 Lexicographically earliest sequence of distinct positive integers with no finite subset summing to a primorial number (A002110). %C A353980 The sequence is well defined: %C A353980 - a(1) = 3, %C A353980 - for n > 0, let k be such that A002110(k) + 1 + a(1) + ... + a(n) < A002110(k+1), %C A353980 - then a(n+1) <= A002110(k) + 1. %H A353980 Rémy Sigrist, <a href="/A353980/a353980.txt">C++ program</a> %o A353980 (C++) See Links section. %Y A353980 See A353966 for similar sequences. %Y A353980 Cf. A002110, A353981, A353982. %K A353980 nonn %O A353980 1,1 %A A353980 _Rémy Sigrist_, May 13 2022