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A103592
a(n) is the smallest prime p such that Sum_{primes q <= p} 1/q >= n/2.
2
2, 5, 29, 277, 11789, 5195977, 118185163069, 1801241230056600523
OFFSET
1,1
MATHEMATICA
Table[m = 1; s = 0; While[(s = s + 1/Prime[m]) < n/2, m++];
Prime[m], {n, 1, 8}] (* Robert Price, Mar 27 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
a(7)-a(8) from Martin Raab, Aug 24 2008
a(7) corrected by Martin Raab, Mar 31 2009
STATUS
approved