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%I #15 Jun 05 2018 12:23:59
%S 9,4,4,4,61,10,10,10,116,16,16,16,169,22,22,22,119,26,26,26,259,32,32,
%T 32,314,38,38,38,367,44,44,44,421,50,50,50,476,56,56,56,529,62,62,62,
%U 319,66,66,66,619,72,72,72,674,78,78,78,727,84,84,84,782,90,90,90,835,96,96,96,489,100
%N First differences of A273059.
%H Alois P. Heinz, <a href="/A275915/b275915.txt">Table of n, a(n) for n = 0..30287</a> (first 1408 terms from N. J. A. Sloane)
%H Alois P. Heinz, <a href="/A273059/a273059.jpg">Positions of first 1409 1's in plane of A274640</a>
%H Zak Seidov, <a href="/A273059/a273059.png">Graph of first differences of A273059.</a>
%H Zak Seidov, <a href="/A273059/a273059_1.png">Spiral A274640 with ones shown.</a>
%Y Cf. A273059, A274640.
%K nonn
%O 0,1
%A _N. J. A. Sloane_, Aug 28 2016
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