%I #7 Aug 10 2015 07:28:20
%S 1,1,2,2,4,2,4,6,2,4,8,4,2,4,6,8,6,4,6,6,6,2,6,10,8,4,2,6,4,12,6,8,4,
%T 12,2,4,2,12,16,2,10,2,4,6,2,4,8,10,8,12,6,4,14,6,6,16,2,6,4,12,6,2,
%U 16,6,6,8,10,8,4,2,10,2,4,8,18,4,8,6,12,4,6,6,8,10,8,6,12,12,12,4,12,2,12,6,4,8,18,4,6,6,8,6,12,6,6,6,4,20,6
%N First differences of Ludic numbers: a(n) = A003309(n+1) - A003309(n).
%H Antti Karttunen, <a href="/A260723/b260723.txt">Table of n, a(n) for n = 1..10000</a>
%H <a href="/index/Si#sieve">Index entries for sequences generated by sieves</a>
%F a(n) = A003309(n+1) - A003309(n).
%o (Scheme) (define (A260723 n) (- (A003309 (+ n 1)) (A003309 n)))
%Y Cf. A003309.
%Y Cf. also A001223, A031883, A260722.
%K nonn
%O 1,3
%A _Antti Karttunen_, Aug 06 2015
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