PrimeGrid user rogue has proposed a "friendly" mini-challenge to find a Generalized Cullen or Woodall base 13 prime on or before Friday, February 13th, 2009. A most ambitious endeavor! It will take the Luck of all the Irish PrimeGrid users for this prime to be found...especially on that date. However, to the finder goes all the spoils of fame (math fame) for these elusive gems! For more information, please see this forum thread.