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 A073619 #12 Apr 22 2020 23:48:34 %S A073619 0,8,10,21,28,45,58,77,100,129,160,201,238,285,328,381,440,501,568, %T A073619 639,712,791,874,963,1060,1161,1264,1371,1480,1593,1720,1851,1988, %U A073619 2127,2276,2427,2584,2747,2914,3087,3266,3447,3638,3831,4028,4227,4438,4661,4888 %N A073619 a(1) = 0; a(n) = smallest composite number which is a sum of n distinct primes. %H A073619 Jean-François Alcover, <a href="/A073619/a073619.txt">Conjectured terms up to a(200)</a> %F A073619 Min(a(n), A068873(n)) = A007504(n) for n > 1. - _Jonathan Sondow_, Jul 10 2012 %e A073619 a(4) = 21 as 21 = 2+3+5+11 is the smallest composite number expressible as sum of four distinct primes. %Y A073619 Cf. A068873, A073620, A073621. %K A073619 nonn %O A073619 1,2 %A A073619 _Amarnath Murthy_, Aug 07 2002 %E A073619 More terms from _Sascha Kurz_, Feb 03 2003