OFFSET
1,1
COMMENTS
For almost all primes p, p# is in this sequence by Brun's theorem. - Charles R Greathouse IV, Sep 14 2015
LINKS
Charles R Greathouse IV, Table of n, a(n) for n = 1..350
FORMULA
Compute P = product of the first k primes. If P is neither preceded nor followed by a prime add P to the sequence.
EXAMPLE
13# = 30030 is preceded by a prime but is not followed by a prime. 17# = 510510 is neither preceded nor followed by a prime.
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Enoch Haga, Dec 25 2007
EXTENSIONS
Edited by and more terms from Charles R Greathouse IV, Sep 29 2008
STATUS
approved