OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000 (terms 1..1000 from Harvey P. Dale)
MATHEMATICA
Do[If[OddQ[(Prime[n + 1] + Prime[n])/2] && Mod[(Prime[n + 1] + Prime[n])/2, 17] == 0, Print[(Prime[n + 1] + Prime[n])/2]], {n, 1, 3000}] (*Artur Jasinski*)
Select[Range[17, 12000, 34], !PrimeQ[#]&&#-NextPrime[#, -1]==NextPrime[#]-#&] (* Harvey P. Dale, Nov 18 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Dec 21 2006
EXTENSIONS
Extended by Ray Chandler, Jan 09 2007
STATUS
approved