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 A131582 #8 Nov 02 2016 11:33:17 %S A131582 14,1421,142125,14212530,1421253033,142125303338,14212530333841, %T A131582 1421253033384143,142125303338414348,14212530333841434850, %U A131582 1421253033384143485053,142125303338414348505356,14212530333841434850535659,1421253033384143485053565961 %N A131582 Concatenation of first n numbers of (A002410: Nearest integer to imaginary part of n-th zero of Riemann zeta function). %H A131582 Matthew House, <a href="/A131582/b131582.txt">Table of n, a(n) for n = 1..341</a> %H A131582 <a href="/index/Z#zeta_function">Index entries for zeta function</a>. %Y A131582 See A002410 for more information. %K A131582 easy,nonn,base,less %O A131582 1,1 %A A131582 _Omar E. Pol_, Sep 13 2007 %E A131582 Offset corrected by _Matthew House_, Nov 01 2016