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%I #6 Oct 25 2013 12:25:19
%S 1,2,3,4,5,-7,6,8,-9,10,-11,12,13,-17,14,15,-21,16,18,-24,19,20,-27,
%T 22,23,-32,25,26,-36,28,29,-40,30,-31,33,34,-46,35,37,-52,38,39,-54,
%U 41,42,-59,43,44,-61,45,47,-65,48,-49,50,51,-70,53,55,-77,56,-57
%N a(n)*|a(n)| gives the first difference of A230455.
%C This sequence contains only terms with distinct absolute values, different from 0.
%H Paul Tek, <a href="/A230565/b230565.txt">Table of n, a(n) for n = 1..10000</a>
%Y Cf. A230455, A230560.
%K sign
%O 1,2
%A _Paul Tek_, Oct 23 2013
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