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 A126056 #16 Oct 15 2024 04:32:29 %S A126056 2,3,5,7,13,1,3,15,13,9,11,15,9,15,15,11,9,1,13,7,9,5,13,1,5,9,1,3,7, %T A126056 1,11,7,9,11,13,13,1,1,5,11,7,7,9,1,11,9,1,9 %N A126056 Exponents p of the Mersenne primes 2^p - 1 (see A000043) read mod 16. %F A126056 a(n) = A130909(A000043(n)). - _Michel Marcus_, Apr 07 2018 %t A126056 Mod[MersennePrimeExponent[Range[48]], 16] (* _Amiram Eldar_, Oct 15 2024 *) %Y A126056 Cf. A000043, A130909, A126043-A126059. %K A126056 nonn,more %O A126056 1,1 %A A126056 _Artur Jasinski_, Dec 17 2006 %E A126056 a(45)-a(47) from _Ivan Panchenko_, Apr 08 2018 %E A126056 a(48) from _Amiram Eldar_, Oct 15 2024