

A120563


Prime numbers of the form prod_{k=1,...,n} prime(k)^k + 1.


0




OFFSET

0,1


COMMENTS

Corresponding n for these three terms are 1, 2, 3. The next term, if any, has 330855 or more digits and corresponding n > 450.


LINKS

Table of n, a(n) for n=0..2.


EXAMPLE

The prime 2251 is a term as 2251 = 2^1 * 3^2 * 5^3 + 1.


CROSSREFS

Sequence in context: A114301 A192340 A098796 * A182344 A191623 A164063
Adjacent sequences: A120560 A120561 A120562 * A120564 A120565 A120566


KEYWORD

bref,hard,more,nonn


AUTHOR

Rick L. Shepherd, Jun 14 2006


STATUS

approved



