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 #6 Jun 20 2020 01:14:28
%S 1,6,20,24,30,48,60,112,160,168,180,336,360,480,720,1008,1080,1260,
%T 1440,2100,2400,2520,2880,3960,4200,4680,5040,5280,6720,7560,8400,
%U 9240,12600,12960,13440,13860,16800,18480,20160,23100,25200,27720,30240,32760,37800,40320,41580
%N Distinct values of A230399(n) - n.
%C For many terms there are lots of solutions to the equation a(n) = A230399(m) - m. For example there are 5 solutions to 360 = A230399(m) - m, and 5068 solutions to 49008960 = A230399(m) - m.
%e 24 is in the sequence as A230399(2) - 2 = 26-2 = 24.
%Y Cf. A230374, A230399.
%K nonn
%O 1,2
%A _David A. Corneth_, May 12 2020