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A140089 Products of two triangular numbers each > 1. 2

%I #9 Nov 29 2015 15:01:36

%S 9,18,30,36,45,60,63,84,90,100,108,126,135,150,165,168,198,210,216,

%T 225,234,270,273,280,315,330,360,396,408,420,441,450,459,468,513,540,

%U 546,550,570,588,630,660,675,693,720,756,759,780,784,816,825,828,900,910

%N Products of two triangular numbers each > 1.

%Y Cf. A000217. Subsequence of A085780.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Jun 27 2008

%E More terms from _Rick L. Shepherd_ and _John W. Layman_, Jul 03 2008

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Last modified April 16 18:02 EDT 2024. Contains 371750 sequences. (Running on oeis4.)