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A062595 Numbers n such that 29^n - 28^n is prime. 0
3, 7219, 34871 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Terms > 1000 are often only strong pseudoprimes.

a(4) > 10^5. - Robert Price, Sep 22 2012

LINKS

Table of n, a(n) for n=1..3.

PROG

(PARI) is(n)=ispseudoprime(29^n-28^n) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Sequence in context: A056749 A281788 A134776 * A128147 A326391 A068918

Adjacent sequences:  A062592 A062593 A062594 * A062596 A062597 A062598

KEYWORD

nonn,hard,bref

AUTHOR

Mike Oakes, May 18 2001, May 19 2001

EXTENSIONS

a(3) from Robert Price, Sep 22 2012

STATUS

approved

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Last modified April 1 00:35 EDT 2020. Contains 333152 sequences. (Running on oeis4.)