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%I #7 May 05 2022 15:08:00
%S 1,1,2,-1,2,1,4,-3,1,4,-3,2,5,2,-5,1,8,-7,2,3,4,-5,2,5,2,-3,-2,7,4,-7,
%T 4,1,4,-3,-4,9,2,-3,-2,7,4,-7,2,7,4,-9,1,6,-5,4,5,2,-9,4,7,2,-7,2,9,2,
%U -9,2,3,8,-9,2,5,4,-5,-2,9,4,-5,-4,7,4,-9,4,7,2,-7,4,7,-2,-7,6,5,2,-5,4,3,2,-13,6,11,2,-9,2,3,8,-9,2,9,2,-9
%N First differences of A121216.
%H Rémy Sigrist, <a href="/A352933/b352933.txt">Table of n, a(n) for n = 1..10000</a>
%H Rémy Sigrist, <a href="/A352933/a352933.txt">C program</a>
%o (C) See Links section.
%Y Cf. A121216.
%K sign
%O 1,3
%A _N. J. A. Sloane_, May 05 2022
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