OFFSET
1,17
COMMENTS
LINKS
T. D. Noe, Table of n, a(n) for n=1..10000
Carlos Rivera, Conjecture 33: The Goldbach Temptation, The Prime Puzzles & Problems Connection.
EXAMPLE
a(17)=2 because 34 = 1+33 = 9+25.
MATHEMATICA
Table[cnt=0; Do[If[GCD[2n-i, i]==1 && !PrimeQ[i] && !PrimeQ[2n-i], cnt++ ], {i, 1, n, 2}]; cnt, {n, 100}]
CROSSREFS
KEYWORD
nonn,look
AUTHOR
T. D. Noe, Jun 02 2008
STATUS
approved