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%I #4 Sep 16 2014 16:13:53
%S 1,4,2,10,3,23,8,54,9,117,11,245,14,504,18,1026,21,2073,22,4168,24,
%T 8360,25,16745,27,33517,28,67062,29,134153,30,268336,32,536704,33,
%U 1073441,35,2146917,37,4293871,39,8587781,40,17175602,41,34351245,45,68702535,47
%N First differences of A024431.
%C a(n) = A024431(n+1) - A024431(n) = A115409(n+1,n+1).
%H Reinhard Zumkeller, <a href="/A247414/b247414.txt">Table of n, a(n) for n = 0..1000</a>
%o (Haskell)
%o a247414 n = a247414_list !! n
%o a247414_list = zipWith (-) (tail a024431_list) a024431_list
%Y Cf. A024431, A115409.
%K nonn
%O 0,2
%A _Reinhard Zumkeller_, Sep 16 2014
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