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%I #19 Sep 08 2019 17:26:16
%S 7,27,56,91,112,156,355,988,8925,28518,36655,76999,132943,360432,
%T 683575,1412464,3430111,11097188,83623927,404412907,288039497527
%N Numbers k such that phi(k + 8) | sigma(k) + 8.
%C a(22) > 10^12. - _Donovan Johnson_, Feb 28 2012
%t Cases[Range[10000],
%t x_ /; Divisible[DivisorSigma[1, x] + 8, EulerPhi[x + 8]] == True] (* _David Nacin_, Feb 28 2012 *)
%K nonn
%O 1,1
%A _Robert G. Wilson v_
%E Offset corrected and a(10)-a(21) from _Donovan Johnson_, Feb 28 2012