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A062644 Numbers n such that 78^n - 77^n is prime. 0
7, 5749 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Terms > 1000 are often only strong pseudoprimes.

a(3) > 10^5. - Robert Price, Oct 04 2014

LINKS

Table of n, a(n) for n=1..2.

PROG

(PARI) is(n)=ispseudoprime(78^n-77^n) \\ Charles R Greathouse IV, Jun 13 2017

CROSSREFS

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

Sequence in context: A219893 A243780 A246519 * A103174 A203693 A125036

Adjacent sequences:  A062641 A062642 A062643 * A062645 A062646 A062647

KEYWORD

nonn,hard,bref,more

AUTHOR

Mike Oakes, May 18 2001, May 19 2001

STATUS

approved

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Last modified May 26 01:22 EDT 2020. Contains 334613 sequences. (Running on oeis4.)