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First row of array in A274630.
3

%I #3 Jul 08 2016 11:15:56

%S 1,3,6,2,7,5,8,4,9,10,15,13,11,18,12,20,16,22,25,27,14,28,29,31,33,34,

%T 38,32,35,36,41,40,39,17,46,43,44,52,19,48,57,50,61,53,58,21,23,24,63,

%U 65,56,60,26,71,66,68,74,78,30,77,73,80,84,69,76,82,79,89,92,85,90,87,91,93,94,37,96

%N First row of array in A274630.

%Y Cf. A274630, A269526.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Jul 08 2016