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%I #9 Jan 26 2021 03:46:44
%S 0,5,17,100,791,5830,42468,327198,327198,2575838,20476640,166554645,
%T 1353822880,11150031169,92258920888,769310640408,6447635236133,
%U 54292816788848,459112338326268,3896226837717653,33172345145637461
%N Sum of primes <= 3^n.
%C For large n, these numbers can be closely approximated by the number of primes < (3^n)^2. For example, the sum of primes < 3^12 = 11150031169. The number of primes < (3^12)^2 = 3^24 = 11152818693. The error here 0.000250.
%C The second term, 5, is the addition of the primes 2 and 3 since we defined the sequence as less than or equal.
%H Cino Hilliard, <a href="http://docs.google.com/Doc?id=dgpq9w4b_26dtrq634m">Sum of Primes</a>.
%H Cino Hilliard, <a href="http://docs.google.com/Docdocid=dgpq9w4b_11m7tc9r&hl=en">Sumprimesgmp program</a>.
%Y Cf A057958.
%K nonn
%O 0,2
%A _Cino Hilliard_, Jun 09 2008
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