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Position of the first term >= n in A337475.
4

%I #12 Sep 01 2020 08:54:08

%S 1,4,17,570,63826,13810338

%N Position of the first term >= n in A337475.

%C At least for n=0..5, A336835(A025487(a(n))) = n.

%H <a href="/index/Pri#prime_indices">Index entries for sequences computed from indices in prime factorization</a>

%H <a href="/index/Pri#primorial_numbers">Index entries for sequences related to primorial numbers</a>

%H <a href="/index/Si#SIGMAN">Index entries for sequences related to sigma(n)</a>

%F For all n >= 0, A025487(a(n)) = A336389(n).

%Y Cf. A025487, A336389, A336835, A337475, A337476, A337478.

%K nonn,hard,more

%O 0,2

%A _Antti Karttunen_, Aug 28 2020