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A100275 Numbers n such that 9*10^n - 11 is prime. 3
1, 4, 16, 22, 316, 393, 461, 864, 1306, 2964, 8956, 10449, 11652 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Numbers corresponding to terms <= 864 are certified primes. - Klaus Brockhaus, Feb 15 2005

LINKS

Table of n, a(n) for n=1..13.

PROG

(PARI) is(n)=ispseudoprime(9*10^n-11) \\ Charles R Greathouse IV, May 22 2017

CROSSREFS

Cf. A092767.

Sequence in context: A075331 A237878 A065661 * A307165 A234275 A284810

Adjacent sequences:  A100272 A100273 A100274 * A100276 A100277 A100278

KEYWORD

nonn,more

AUTHOR

R. K. Guy, Dec 29 2004

EXTENSIONS

More terms from Patrick De Geest, Dec 29 2004

a(1)=1 inserted by Tom Mueller, Feb 08 2005

Edited by R. J. Mathar, Aug 06 2008

STATUS

approved

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Last modified October 28 06:41 EDT 2021. Contains 348316 sequences. (Running on oeis4.)