Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #33 Nov 17 2023 11:51:29
%S 36,62480,141440,1245335,1432640,2286080,6680960,7660880,27931280,
%T 39685376,116636864,179299575,318047135,318523136,358491735,533718135,
%U 709131500,1119849500,1122571695,1814416175,2081125376,3565970135,3991520000,4141021500,4483640576
%N Numbers n such that A001065(x)*x = n has at least two solutions.
%C Products of pairs of amicable numbers are members of this sequence.
%H Passawan Noppakaew and Prapanpong Pongsriiam, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL26/Pongsriiam/pong43.html">Product of Some Polynomials and Arithmetic Functions</a>, J. Int. Seq. (2023) Vol. 26, Art. 23.9.1.
%e For n=36, A001065(6)*6 = 36, A001065(9)*9 = 36, therefore 36 is a term.
%Y Cf. A212373, A212490, A212489.
%K nonn
%O 1,1
%A _Naohiro Nomoto_, May 18 2012
%E a(9)-a(25) from _Donovan Johnson_, May 21 2012