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 A287593 #6 May 28 2017 09:42:49 %S A287593 2060959049,5179429429,5817066779,12956411939,13177258649,13180695739, %T A287593 13421782139,14203265309,14388905039,14550841619,14837398039, %U A287593 16968792109,20244234709 %N A287593 Initial prime in set of 4 consecutive primes in arithmetic progression with difference 84. %C A287593 a(1) = 2060959049 = A052239(14). %K A287593 nonn %O A287593 1,1 %A A287593 _Zak Seidov_, May 27 2017