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, 13] == 0, Print[(Prime[n + 1] + Prime[n])/2]], {n, 1, 3000}] (*Artur Jasinski*)
Select[(Total/@Partition[Prime[Range[1200]], 2, 1])/2, OddQ[#]&&Mod[#, 13] == 0&] (* Harvey P. Dale, May 23 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Dec 21 2006
EXTENSIONS
Extended by Ray Chandler, Jan 09 2007
STATUS
approved