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 A095687 #9 Jul 17 2012 03:12:02 %S A095687 0,10,50,250,1250,6250,31250,156250,781250,3906250,19531250,97656250, %T A095687 488281250,2441406250,12207031250,61035156250,305175781250, %U A095687 1525878906250,7629394531250,38146972656250,190734863281250 %N A095687 Numbers n such that n-th Pisano number = 6*n. %C A095687 Period of Fibonacci sequence(mod m)<=6*m. %C A095687 Effectively the same as A020699 and A020729 apart from the initial terms. [From _Carl R. White_, Sep 22 2009] %H A095687 K. S. Brown, <a href="http://www.mathpages.com/home/kmath078/kmath078.htm">Periods of Fibonacci Sequences Mod m</a> %F A095687 a(0) = 0, a(1) = 10, a(n) = 5*a(n-1); a(n) = sgn(n)*2*5^n [From _Carl R. White_, Sep 22 2009] %Y A095687 Cf. A001175. %K A095687 nonn %O A095687 1,2 %A A095687 _Lekraj Beedassy_, Jul 05 2004 %E A095687 More terms from _Carl R. White_, Sep 22 2009