cp's OEIS Frontend

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.

A241418 First differences of Arshon's sequence, cf. A099054.

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%I A241418 #8 Aug 08 2014 14:46:49
%S A241418 1,1,-2,2,-1,1,-2,1,1,-1,-1,2,-2,1,-1,2,-1,1,-2,1,1,-1,-1,1,1,-2,1,-1,
%T A241418 2,-1,1,-2,2,-1,-1,2,-2,1,1,-1,-1,1,1,-2,2,-1,-1,2,-2,1,-1,2,-1,1,-2,
%U A241418 1,1,-1,-1,1,1,-2,1,-1,2,-1,1,-2,2,-1,-1,1,1,-2
%N A241418 First differences of Arshon's sequence, cf. A099054.
%C A241418 Also first differences of A219762;
%C A241418 a(n) = A099054(n+1) - A099054(n) = A219762(n+2) - A219762(n+1).
%H A241418 Reinhard Zumkeller, <a href="/A241418/b241418.txt">Table of n, a(n) for n = 0..10000</a>
%o A241418 (Haskell)
%o A241418 a241418 n = a241418_list !! n
%o A241418 a241418_list = zipWith (-) (tail a099054_list) a099054_list
%Y A241418 Cf. A099054, A219762.
%K A241418 sign
%O A241418 0,3
%A A241418 _Reinhard Zumkeller_, Aug 08 2014