OFFSET
2,2
COMMENTS
LINKS
Peter J. C. Moses, Table of n, a(n) for n = 2..5001
Vladimir Shevelev, Peter J. C. Moses, Constellations of primes generated by twin primes, arXiv:1610.03385 [math.NT], 2016.
FORMULA
a(n)=2 if and only if prime(n+1) - prime(n) >=8.
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Shevelev and Peter J. C. Moses, Oct 22 2016
STATUS
approved