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 A176741 #3 Jul 23 2012 08:51:45 %S A176741 0,1,1,2,1,3,2,5,7,2,9,11,2,13,11,24,35,11,46,35,81,116,35,151,186,35, %T A176741 221,186,407,593,186,779,965,186,1151,965,2116,3081,965,4046,3081, %U A176741 7127,10208,3081,13289,16370,3081,19451,16370,35821,52191,16370,68561,52191,120752 %N A176741 Fibonacci-Chebyshev sequence depending on rabbit sequence A005614. %C A176741 See Viswanath sequences (A078416 and links) for random sequences of this type. %F A176741 a(n) = a(n-1) + (-1)^(h(n)+1)*a(n-2), with h(n):=A005614(n) (rabbit sequence or Fibonacci word), inputs a(0)=0, a(1)=1. %Y A176741 Cf. A053602 (alternating signs). %K A176741 nonn,easy %O A176741 0,4 %A A176741 _Wolfdieter Lang_, Oct 15 2010