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 A080173 #23 Oct 18 2024 17:58:51 %S A080173 3,7,31,27,91,71,87,47,51,11,27,27,51,27,87,7,51,71,91,7,11,51,91,71, %T A080173 51,11,71,7,7,11,47,87,91,27,11,51,71,91,71,47,7,47,71,71,27,51,11,51 %N A080173 Final 2 digits of n-th Mersenne prime A000668(n). %H A080173 Great Internet Mersenne Prime Search (GIMPS), <a href="http://www.mersenne.org/">Distributed Computing Projects</a> %H A080173 Mersenne Primes, <a href="http://www.utm.edu/research/primes/mersenne/index.html">History, Theorems and Lists</a> %t A080173 Mod[2^MersennePrimeExponent[Range[48]]-1, 100] (* _Mark Dowdeswell_, Sep 16 2024 *) %Y A080173 Cf. A080172, A000668, A000043. %K A080173 base,more,nonn %O A080173 1,1 %A A080173 _Mark Dowdeswell_, Feb 04 2003 %E A080173 Offset corrected by _Arkadiusz Wesolowski_, Jan 26 2012 %E A080173 a(39)-a(47) from _Ivan Panchenko_, Apr 11 2018 %E A080173 a(48) from _Mark Dowdeswell_, Sep 16 2024