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%I #10 Dec 05 2013 19:56:03
%S 1,2,3,6,12,4,8,18,10,9,15,24,14,30,16,20,36,22,42,40,21,27,28,48,54,
%T 26,45,32,34,60,50,66,70,56,72,33,39,44,78,84,80,75,38,51,46,52,69,68,
%U 90,96,98,102,88,104,57,63,76,108,110,114,105,100,120,92,117,58,62,87,126
%N Square array read by antidiagonals, alternating upwards and downwards: T(1, 1) = 1 and every other entry is the smallest number not already used that has a common factor with every number in its row and column, not including the 1.
%C This is the boustrophedon method of filling an array.
%e 1, 2, 4, 8, 14, 16, ...
%e 3, 12, 18, 24, ...
%e 6, 10, 20, ...
%e 9, 30, ...
%e 15 ...
%Y Cf. A082003, A082004, A082005.
%K nonn,tabl
%O 1,2
%A _Amarnath Murthy_, Apr 05 2003
%E More terms from _David Wasserman_, Jul 30 2004