OFFSET
1,2
COMMENTS
A greedy inverse of A190268. (Apparently there are no even terms in A190268.) - R. J. Mathar, Jun 03 2011
FORMULA
a(n) = {min k: A190268(k) = 2*n-1}.
EXAMPLE
a(4)= 17, because the 17th twin prime pair average, A014574(16)=240, can be written in 2*4-1=7 different ways as the mean of a lower and an upper twin prime.
CROSSREFS
KEYWORD
nonn,less
AUTHOR
Juri-Stepan Gerasimov, May 26 2011
STATUS
approved