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A228486
Near primorial primes: primes p such that p+1 or p-1 is a primorial number (A002110).
0
2, 3, 5, 7, 29, 31, 211, 2309, 2311, 30029, 200560490131, 304250263527209, 23768741896345550770650537601358309
OFFSET
1,1
COMMENTS
The next few terms are too large to add: 317#-1, 337#-1, 379#+1, 991#-1. - Charles R Greathouse IV, Sep 12 2013
FORMULA
A057705 UNION {primes p such that p-1 is a primorial number} = {primes p such that p+1 is a primorial number (A002110)} UNION {primes p such that p-1 is a primorial number}.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Aug 22 2013
EXTENSIONS
a(1)-a(2), a(7), a(11) inserted by Charles R Greathouse IV, Sep 12 2013
STATUS
approved