cp's OEIS Frontend

A142882 First trisection of A120070.

%I A142882 #4 Mar 30 2012 18:51:59
%S A142882 3,15,24,9,27,48,33,63,48,15,72,45,99,84,51,120,105,72,21,135,108,63,
%T A142882 168,153,120,69,195,180,147,96,27,216,189,144,81,255,240,207,156,87,
%U A142882 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 A142882 First trisection of A120070.
%C A142882 All entries are multiples of 3.
%e A142882 If we keep the association with lines in A120070, this triangle here that keeps only each third element starts:
%e A142882 3;
%e A142882 ./.;
%e A142882 15;
%e A142882 24,9;
%e A142882 27;
%e A142882 48,33;
%e A142882 63,48,15;
%e A142882 72,45;
%e A142882 99,84,51;
%e A142882 120,105,72,21;
%e A142882 135,108,63;
%e A142882 168,153,120,69;
%e A142882 195,180,147,96,27;
%e A142882 216,189,144,81;
%e A142882 255,240,207,156,87;
%e A142882 288,273,240,189,120,33;
%e A142882 315,288,243,180,99;
%e A142882 360,345,312,261,192,105;
%e A142882 399,384,351,300,231,144,39;
%K A142882 nonn,tabf
%O A142882 1,1
%A A142882 _Paul Curtz_, Sep 28 2008