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 A127239 #11 Jun 22 2020 04:48:53 %S A127239 1,1,0,0,1,0,0,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,1,0,1, %T A127239 1,1,1,0,1,1,1,0,0,1,0,0,0,0,0,1,1,0,0,0,1,0,0,0,1,0,0,0,1,0,1,0,1,1, %U A127239 0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,0 %N A127239 Central coefficients of Thue-Morse binomial triangle A127236. %H A127239 Robert Israel, <a href="/A127239/b127239.txt">Table of n, a(n) for n = 0..2000</a> %F A127239 a(n) = A010060(binomial(2n,n)). %p A127239 tm:= proc(n) option remember; %p A127239 if n::even then procname(n/2^padic:-ordp(n, 2)) %p A127239 else 1 - procname((n-1)/2) %p A127239 fi %p A127239 end proc: %p A127239 tm(0):= 0: %p A127239 seq(tm(binomial(2*n,n)),n=0..100); # _Robert Israel_, May 07 2019 %t A127239 Table[ThueMorse[Binomial[2n, n]], {n, 0, 100}] (* _Jean-François Alcover_, Jun 22 2020 *) %Y A127239 Cf. A010060, A127236. %K A127239 easy,nonn %O A127239 0,1 %A A127239 _Paul Barry_, Jan 10 2007