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 A275984 #11 Sep 08 2022 08:46:17 %S A275984 8,5,4,5,0,9,8,2,4,3,0,3,6,3,3,8,0,3,1,9,3,3,0,0,7,0,5,3,1,8,4,0,3,0, %T A275984 3,6,5,0,9,9,0,1,5,9,1,3,0,4,0,2,1,0,5,8,3,4,3,2,6,9,2,5,8,2,8,2,2,9, %U A275984 0,0,6,4,7,8,2,1,6,7,6,3,5,8,5,6,2,0,0,5,0,0,0,1,4,4,5,7,6,4,5,8,6,1,4,8,1 %N A275984 Decimal expansion of 2^44497 - 1, the 27th Mersenne prime A000668(27). %H A275984 Arkadiusz Wesolowski, <a href="/A275984/b275984.txt">Table of n, a(n) for n = 13395..26789</a> %H A275984 Wikipedia, <a href="http://en.wikipedia.org/wiki/Mersenne_prime">Mersenne prime</a> %F A275984 2^A000043(27) - 1. %e A275984 85450982430363380319330070531840303650990159130402105834326925828229006... %t A275984 First@RealDigits@N[2^44497 - 1, 100] (* _G. C. Greubel_, Aug 15 2016 *) %o A275984 (Magma) Reverse(Intseq(2^44497-1))[1..105]; %o A275984 (PARI) eval(Vec(Str(2^44497-1)))[1..105] %Y A275984 Cf. A169684 = A000668(11), A169681 = A000668(12), A169685 = A000668(13), A204063 = A000668(14), A248931 = A000668(15), A248932 = A000688(16), A248933 = A000668(17), A248934 = A000668(18), A248935 = A000668(19), A248936 = A000668(20), A275977 = A000668(21), A275979 = A000668(22), A275980 = A000668(23), A275981 = A000668(24), A275982 = A000668(25), A275983 = A000668(26). %K A275984 nonn,cons,easy,fini,full %O A275984 13395,1 %A A275984 _Arkadiusz Wesolowski_, Aug 15 2016