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 A104940 #20 Feb 16 2025 08:32:57
%S A104940 939923,992359,746749,241739,644923,350033,500333,374293,937337,
%T A104940 773767,160087,670853,532331,199501,847937,299213,325421,526733,
%U A104940 673313,331399,375413,395491,954911,939973,271351,349291,984301,341777,916633,633401
%N A104940 Primes from merging of 6 successive digits in decimal expansion of the Euler-Mascheroni Constant.
%C A104940 Each term must have 6 digits, i.e., leading zeros are not permitted. - _Harvey P. Dale_, Jun 07 2022
%H A104940 Vincenzo Librandi, <a href="/A104940/b104940.txt">Table of n, a(n) for n = 1..1000</a>
%H A104940 Jon Borwein, <a href="https://web.archive.org/web/20060212094503/http://www.worldwideschool.org/library/books/sci/math/MiscellaneousMathematicalConstants/chap35.html">170,000 digits of Gamma</a> [Wayback Machine copy]
%H A104940 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Euler-MascheroniConstant.html">Euler-Mascheroni Constant</a>.
%t A104940 egp[len_] := Module[{egterms = FromDigits /@ Partition[RealDigits[EulerGamma, 10, 1000][[1]], len, 1]}, Select[egterms, IntegerLength[#] == len && PrimeQ[#] &]]; egp[6] (* _Vincenzo Librandi_, Apr 20 2013 *)
%Y A104940 Cf. A001620.
%K A104940 nonn,base
%O A104940 1,1
%A A104940 Andrew G. West (WestA(AT)wlu.edu), Mar 29 2005
%E A104940 Changed offset from 0 to 1 by _Vincenzo Librandi_, Apr 20 2013