OFFSET
1,2
LINKS
Steven Harvey, Generalized Woodall Search
MATHEMATICA
Do[ If[ PrimeQ[ n*6^n - 1 ], Print[ n ] ], {n, 1, 3500} ]
PROG
(PARI) is(n)=ispseudoprime(n*6^n-1) \\ Charles R Greathouse IV, May 22 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Feb 05 2001
EXTENSIONS
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 05 2008
a(22)-a(23) from Harvey link by Ray Chandler, Apr 10 2016
STATUS
approved