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%I #4 Mar 30 2012 18:51:59
%S 3,15,24,9,27,48,33,63,48,15,72,45,99,84,51,120,105,72,21,135,108,63,
%T 168,153,120,69,195,180,147,96,27,216,189,144,81,255,240,207,156,87,
%U 288,273,240,189,120,33,315,288,243,180,99,360,345,312,261,192,105,399,384,351,300,231,144,39
%N First trisection of A120070.
%C All entries are multiples of 3.
%e If we keep the association with lines in A120070, this triangle here that keeps only each third element starts:
%e 3;
%e ./.;
%e 15;
%e 24,9;
%e 27;
%e 48,33;
%e 63,48,15;
%e 72,45;
%e 99,84,51;
%e 120,105,72,21;
%e 135,108,63;
%e 168,153,120,69;
%e 195,180,147,96,27;
%e 216,189,144,81;
%e 255,240,207,156,87;
%e 288,273,240,189,120,33;
%e 315,288,243,180,99;
%e 360,345,312,261,192,105;
%e 399,384,351,300,231,144,39;
%K nonn,tabf
%O 1,1
%A _Paul Curtz_, Sep 28 2008
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