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A273600 Numbers n such that (11^n - 8^n)/3 is prime. 3
2, 7, 11, 17, 37, 521, 877, 2423 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

All terms are prime.

The corresponding primes: 19, 5796673, 92240578673, 167731742895202841, 113345629904382710526197539019199125641, ...

LINKS

Table of n, a(n) for n=1..8.

MATHEMATICA

Select[Range[1, 10000], PrimeQ[(11^# - 8^#)/3] &]

PROG

(PARI) for(n=1, 10000, if(isprime((11^n - 8^n)/3), print1(n, ", ")))

CROSSREFS

Cf. A005808, A210506, A128027, A216181, A128347, A273598, A273599, A273601, A062577.

Sequence in context: A165810 A109417 A045372 * A103776 A260889 A289994

Adjacent sequences:  A273597 A273598 A273599 * A273601 A273602 A273603

KEYWORD

nonn,more,hard

AUTHOR

Tim Johannes Ohrtmann, May 26 2016

STATUS

approved

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Last modified May 19 17:48 EDT 2019. Contains 323395 sequences. (Running on oeis4.)