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 A106646 #4 Feb 16 2025 08:32:57 %S A106646 1,0,0,0,0,0,0,0,0,0,0,4,3,0,0,13 %N A106646 Number of pentamagic (5-multimagic) series for squares of order n. %H A106646 Christian Boyer, <a href="http://www.multimagie.com/indexengl.htm">Multimagic Squares</a> %H A106646 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MagicSeries.html">Magic Series</a> %Y A106646 Cf. A090037. %Y A106646 Cf. A052456, A052457, A052458, A090037. %K A106646 nonn,more %O A106646 1,12 %A A106646 Christian Boyer (cboyer(AT)club-internet.fr), May 30 2005 %E A106646 a(15)=0 proved by Robert Gerbitz and communicated by Christian Boyer (cboyer(AT)club-internet.fr), Apr 02 2007 %E A106646 a(16) computed by Michael Quist, and communicated by Christian Boyer (cboyer(AT)club-internet.fr), Feb 06 2009