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%I #29 Jun 07 2024 14:33:08
%S 1,1,3,4,31,15,55,110,280,797,1419,3557,5647,19559,59708,360726,
%T 346487,2018032,2106172,13228494,13994982,65426469,110980446,
%U 257148638,660593345,1966842579,3909078573,20820932559,26864715089,144689720443,307476230099,571509614773
%N Number of pairs of two disjoint sets of n positive integers with product A354457(n).
%H Zhao Hui Du, <a href="https://github.com/emathgroup/selectedTopics/blob/master/content/attached/files/gc3.cpp">C++ Source Code</a>.
%e For n=2, there exists only one pair of sets <{1,6},{2,3}> with product 1*6=2*3, so a(2)=1.
%Y Cf. A354457.
%K nonn
%O 2,3
%A _Zhao Hui Du_, May 13 2024
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