OFFSET
1,3
COMMENTS
The entries shown have been proved to be correct.
LINKS
Jens Kruse Andersen, Status of minimal arithmetic progressions of primes
Eric Weisstein's World of Mathematics, Prime Arithmetic Progression.
FORMULA
David W. Wilson conjectures that a(n) = n# (n primorial, A034386) for n >= 8. If this is true then a(22) onwards are: 9699690, 223092870, 223092870, 223092870, 223092870, 223092870, 223092870, 6469693230, 6469693230, ...
CROSSREFS
KEYWORD
nonn,hard
AUTHOR
EXTENSIONS
Entry revised Feb 02 2006 by N. J. A. Sloane, based on suggestions from Jens Kruse Andersen.
STATUS
approved