%I
%S 0,1,0,1,0,1,0,1,0,1,0,1,2,1,2,3,2,1,2,1,0,1,0,1,0,1,0,
%T 1,0,1,2,1,0,1,2,1,2,1,2,1,2,3,2,1,2,1,2,3,2,3,
%U 4,3,2,3,2,1,2,1,2,3,4,3,4,3,2,3,2,1,2,1,2,1,2,3,2,1,2,1,2,1,0,1,0,1,2,1,0
%N After zero, excess of the odd terms in A276573 (the infinite trunk of least squares beanstalk) over the even terms.
%C Is a(2358) = 0 the last zero of this sequence? See also comments in A277891.
%H Antti Karttunen, <a href="/A277889/b277889.txt">Table of n, a(n) for n = 0..41014</a>
%F a(0) = 0; for n >= 1, a(n) = a(n1)  (1)^A276573(n).
%o (Scheme, with memoizationmacro definec)
%o (definec (A277889 n) (if (zero? n) n ( (A277889 ( n 1)) (expt 1 (A276573 n)))))
%Y Cf. A002828, A276573, A277890, A277891.
%K sign
%O 0,13
%A _Antti Karttunen_, Nov 13 2016
