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%I #11 Nov 04 2021 20:47:08
%S 7,13,19,25,31,37,43,61,67,73,79,91,97,103,109,121,127,133,139,151,
%T 157,163,175,181,193,199,211,217,223,229,241,247,259,271,277,283,289,
%U 301,307,313,325,331,337,343,349,367,373,379,397,403,409,421,427,433,439,457,463,469,475,481,487,499,511,523,529,541
%N Numbers k congruent to 1 or 5 mod 6, for which A348930(k) > k.
%C See comments in A348930.
%H <a href="/index/Si#SIGMAN">Index entries for sequences related to sigma(n)</a>
%t s[n_] := n / 3^IntegerExponent[n, 3]; Select[Range[550], MemberQ[{1, 5}, Mod[#, 6]] && s[DivisorSigma[1, #]] > # &] (* _Amiram Eldar_, Nov 04 2021 *)
%o (PARI)
%o A038502(n) = (n/3^valuation(n, 3));
%o A348930(n) = A038502(sigma(n));
%o isA348932(n) = ((n%2)&&(n%3)&&(A348930(n)>n));
%Y Cf. A007310, A348930, A348931.
%Y Cf. also A348742, A348754.
%K nonn
%O 1,1
%A _Antti Karttunen_, Nov 04 2021