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%I #30 Nov 05 2023 17:41:05
%S 1,3,5,27,47,99,53,137,177,1024,1374,2474,1386,3326,3662,5274,3738,
%T 6290,3756,8954,9374,12878,6680,9682,9850,10324,11010,14578,6704,
%U 78506,84626,106968,88474,127682,86802,143544,84658,160664,97850,274079,89480,326195
%N Index at which n first appears in A307720.
%H Rémy Sigrist, <a href="/A307630/b307630.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..239 from Hans Havermann, terms 240..669 from Lars Blomberg)
%H Rémy Sigrist, <a href="/A307630/a307630.png">Log-plot of first 5000 terms</a>.
%H Rémy Sigrist, <a href="/A307630/a307630.txt">C++ program for A307630</a>.
%o (C++) See Links section.
%Y Cf. A307720, A307631, A307632, A307633, A307634, A307730, A307747.
%K nonn
%O 1,2
%A _N. J. A. Sloane_, Apr 25 2019
%E More terms from _Hans Havermann_, Apr 25 2019
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