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 A059856 #7 Dec 15 2017 17:34:54 %S A059856 5,77,215,66490,1532860,6065120900,82402431042,159335939923, %T A059856 5988057672348,84867726777664,670936947063291,7467495146314472, %U A059856 498070824809605040,1448654283622417399,76449235362535003337 %N A059856 Write down decimal expansion of Euler-Mascheroni constant gamma (A001620); divide up into minimal chunks so that chunks have increasing length and do not begin with zero. %e A059856 0.5772156649015328606065120900824024310421593359399235... %Y A059856 Cf. A001620, A002852, A033091, A098967. %K A059856 easy,nonn,base %O A059856 0,1 %A A059856 _Jason Earls_, Feb 27 2001 %E A059856 More terms from Tracy Poff (tracy.poff(AT)gmail.com), Apr 15 2005