%I
%S 1,2,4,5,8,10,14,16,20,25,28,32,40,42,50,56,64,70,80,84,100,112,125,
%T 128,132,140,160,168,196,200,210,224,250,256,264,280,320,336,350,392,
%U 400,420,429,448,500,512,528,560,588,625,640,660,672,700,784,800,840
%N Numbers that can be written as a product of Catalan numbers.
%H David A. Corneth, <a href="/A259711/b259711.txt">Table of n, a(n) for n = 1..10000</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/CatalanNumber.html">Catalan Number</a>
%e 70 = 5*14 = C(3)*C(4).  _David A. Corneth_, Mar 26 2021
%Y Cf. A000108, A001013, A003046, A005568, A014228, A259711, A342288.
%K nonn
%O 1,2
%A _Ilya Gutkovskiy_, Apr 14 2020
