OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
K. Soundararajan, Small gaps between prime numbers: the work of Goldston-Pintz-Yildirim, Bull. Amer. Math. Soc., 44 (2007), 1-18.
MATHEMATICA
Transpose[Select[Partition[Prime[Range[200]], 2, 1], #[[2]]-#[[1]]<9&]][[1]] (* Harvey P. Dale, Jan 22 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 19 2006
STATUS
approved