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 A342756 #43 Apr 12 2021 00:07:44 %S A342756 28,63,125,213,362,489,696,823,1104,1443,1642,2089,2433,2616,3060, %T A342756 3555,4103,4396,5072,5477,5792,6550,7033,7781,8614,9342,9749,10258, %U A342756 10773,11449,13173,13814,14682,15433,16669,17262,18248,19363,20269 %N A342756 Rounded value of z(n)*prime(n), where z(n) = imaginary part of n-th nontrivial zero of the Zeta function and prime(n) = n-th prime. %C A342756 Empirical: a(n) ~ 2*Pi*n^2. %H A342756 Simon Plouffe, <a href="/A342756/b342756.txt">Table of n, a(n) for n = 1..100000</a> %H A342756 David Platt, <a href="https://www.lmfdb.org/zeros/zeta/">Zeros of the Zeta function</a>. %H A342756 David Platt, <a href="https://doi.org/10.1090/S0025-5718-2014-02884-6">Computing pi(x) analytically</a>, Mathematics of computation, 84 (2015), 1521-1535. %H A342756 S. Plouffe, <a href="https://vixra.org/pdf/1907.0108v8.pdf">Pi, the primes and the Lambert W function</a> [Slides of a talk] %e A342756 z(1) = 14.134... and prime(1) = 2, a(1) = round(14.134...*2) = 28. %K A342756 nonn %O A342756 1,1 %A A342756 _Simon Plouffe_, Apr 11 2021