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 A126050 #19 Oct 15 2024 04:30:24 %S A126050 2,3,5,7,3,7,9,1,1,9,7,7,1,7,9,3,1,7,3,3,9,1,3,7,1,9,7,3,3,9,1,9,3,7, %T A126050 9,1,7,3,7,1,3,1,7,7,7,1,9,1 %N A126050 Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 10. %F A126050 a(n) = A010879(A000043(n)). - _Ivan Panchenko_, Apr 07 2018 %t A126050 Array[Mod[MersennePrimeExponent@ #, 10] &, 45] (* _Michael De Vlieger_, Apr 10 2018 *) %Y A126050 Cf. A000043, A010879, A126043-A126059. %K A126050 nonn,more %O A126050 1,1 %A A126050 _Artur Jasinski_, Dec 17 2006 %E A126050 a(45)-a(46) from _Ivan Panchenko_, Apr 07 2018 %E A126050 a(47) from _Ivan Panchenko_, Apr 09 2018 %E A126050 a(48) from _Amiram Eldar_, Oct 14 2024