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A282531 Numbers n where records occur for d(n+1)/d(n), where d(n) is A000005(n). 3

%I

%S 1,11,23,47,59,167,179,239,359,719,839,1259,2879,3359,5039,7559,10079,

%T 21839,33599,35279,37799,55439,100799,110879,166319,262079,327599,

%U 415799,665279,831599,1081079,1441439,2827439,3326399,4989599,6320159,6486479,10533599

%N Numbers n where records occur for d(n+1)/d(n), where d(n) is A000005(n).

%H Daniel Suteu, <a href="/A282531/b282531.txt">Table of n, a(n) for n = 1..52</a>

%o (Perl)

%o use ntheory qw(:all);

%o for (my ($n, $m) = (1, 0) ; ; ++$n) {

%o my $d = divisors($n+1) / divisors($n);

%o if ($m < $d) {

%o $m = $d;

%o print "$n\n";

%o }

%o }

%Y Cf. A000005.

%K nonn

%O 1,2

%A _Daniel Suteu_, Feb 18 2017

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Last modified July 25 02:57 EDT 2021. Contains 346282 sequences. (Running on oeis4.)