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%I #5 Feb 21 2015 15:37:34
%S 0,1,1,1,2,1,1,2,2,2,1,1,1,2,3,2,2,2,2,1,1,1,2,3,2,3,3,2,1,2,3,2,2,2,
%T 2,1,1,1,2,3,2,3,2,2,3,3,3,3,3,2,1,2,3,2,3,3,2,1,2,3,2,2,2,2,1,1,1,2,
%U 3,2,3,2,2,3,3,3,3,2,2,3,3,3,4,3,3,3,3,3,3,2,1,2,3,2,3,2,2,3,3,3,3,3,2,1,2,3,2,3,3,2,1,2,3,2,2,2,2,1,1
%N After a(0) = 0, the first differences of A255057: for n >= 1: a(n) = A255057(n) - A255057(n-1).
%C Used for computing A255338 and A255339.
%H Antti Karttunen, <a href="/A255337/b255337.txt">Table of n, a(n) for n = 0..8590</a>
%F a(n) = A005811(A255056(n))/2.
%F a(0) = 0; and for n >= 1: a(n) = A255057(n) - A255057(n-1).
%F a(n) = A255336(n)/2.
%o (Scheme, two versions)
%o (define (A255337 n) (/ (A005811 (A255056 n)) 2))
%o (define (A255337 n) (if (zero? n) n (- (A255057 n) (A255057 (- n 1)))))
%Y First differences of A255057.
%Y Terms of A255336 divided by 2.
%Y Cf. A005811, A213712, A255338, A255339.
%K nonn
%O 0,5
%A _Antti Karttunen_, Feb 21 2015
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