login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A120563 Prime numbers of the form prod_{k=1,...,n} prime(k)^k + 1. 0
3, 19, 2251 (list; graph; refs; listen; history; internal format)
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.

EXAMPLE

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

CROSSREFS

Sequence in context: A114301 A192340 A098796 * A191623 A164063 A092828

Adjacent sequences:  A120560 A120561 A120562 * A120564 A120565 A120566

KEYWORD

bref,hard,more,nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jun 14 2006

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 07:36 EST 2012. Contains 205712 sequences.