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URL: https://oeis.org/A059675

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A059675
Numbers n such that n*6^n - 1 is prime.
13
1, 2, 3, 19, 20, 24, 34, 77, 107, 114, 122, 165, 530, 1999, 4359, 11842, 12059, 13802, 22855, 41679, 58185, 145359, 249987
OFFSET
1,2
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
Sequence in context: A269251 A092925 A082012 * A128353 A217691 A109418
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