OFFSET
1,1
COMMENTS
The corresponding larger primes (G-major-6 primes) are also of the form 6k+1.
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
FORMULA
A031924(n) == 1 (mod 6).
EXAMPLE
a(1)=31 since a(1) + 6 = 37 is the next prime and 31 = 6*5 + 1.
MATHEMATICA
Transpose[Select[Partition[Prime[Range[400]], 2, 1], Last[#]-First[#] == 6 && Mod[First[#], 6]==1&]][[1]] (* _Harvey P. Dale_, Oct 01 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
_Labos Elemer_, Jan 25 2000
STATUS
approved