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 A059631 #5 Oct 04 2012 10:28:40 %S A059631 0,8,6,4,2,0,8,6,4,2,80,88,86,84,82,80,88,86,84,82,60,68,66,64,62,60, %T A059631 68,66,64,62,40,48,46,44,42,40,48,46,44,42,20,28,26,24,22,20,28,26,24, %U A059631 22,0,8,6,4,2,0,8,6,4,2,80,88,86,84,82,80,88,86,84,82,60,68,66,64,62 %N A059631 Carryless multiplication 8 X n base 10. %H A059631 David Applegate, Marc LeBrun and N. J. A. Sloane, <a href="http://neilsloane.com/doc/carry1.pdf">Carryless Arithmetic (I): The Mod 10 Version</a>. %Y A059631 Cf. A001477 for carryless 1 X n, A004520 for carryless 2 X 10 base 10, A008592 for carryless 10 X n. %K A059631 base,nonn %O A059631 0,2 %A A059631 _Henry Bottomley_, Feb 19 2001