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 A111316 #14 Mar 07 2018 06:47:51 %S A111316 3,6,113573,230801,941071,5166859,30956561,123081011,3050325741, %T A111316 14086296281,60060345973,120331687901,316465918571,634257678809, %U A111316 8042099198501,34761370800833,134702376451061,269979973606237 %N A111316 a(n) = A109890(A111315(n)). %o A111316 (PARI) s = 3; S = Set([1, 2]); i = 3; while (1, d = divisors(s); j = 1; while (setsearch(S, d[j]), j++); n = d[j]; if (n == s, print1(s, ", ")); s += n; S = setunion(S, Set(n)); i++); \\ _David Wasserman_, Jan 09 2009 %Y A111316 Cf. A109890, A111315. %K A111316 nonn %O A111316 1,1 %A A111316 _N. J. A. Sloane_, Nov 04 2005 %E A111316 More terms from _David Wasserman_, Jan 09 2009