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 A071614 #9 Apr 28 2019 10:53:12 %S A071614 13,79,15919,197837,3528871,110539181,731854429,9819391129 %N A071614 a(n) is the smallest emirp that is the first of n consecutive emirps with equal digit sum. %C A071614 a(9) > 10^11. - _Donovan Johnson_, Nov 07 2010 %e A071614 a(3) = 15919, since 15919,15937,15973 are three consecutive emirps with digit sum 25 and this is the first occurrence of three consecutive emirps with equal digit sum. %Y A071614 Cf. A006567, A070905, A071612, A071613. %K A071614 base,more,nonn %O A071614 1,1 %A A071614 _Klaus Brockhaus_, May 27 2002 %E A071614 a(7)-a(8) from _Donovan Johnson_, Nov 07 2010