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A023354 Primes that remain prime through 5 iterations of function f(x) = 9x + 8. 1
4099, 8117, 9587, 36899, 73061, 75527, 214771, 240197, 350219, 385709, 453199, 483649, 501029, 556607, 575119, 616991, 701497, 724597, 880067, 961069, 1230311, 1342501, 1376197, 1558811, 1566847, 1613707, 2450779, 2483711, 2536379, 2598157 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes p such that 9*p+8, 81*p+80, 729*p+728, 6561*p+6560 and 59049*p+59048 are also primes. - Vincenzo Librandi, Aug 05 2010

LINKS

John Cerkan, Table of n, a(n) for n = 1..10000

PROG

(Magma) [n: n in [1..19000000] | IsPrime(n) and IsPrime(9*n+8) and IsPrime(81*n+80) and IsPrime(729*n+728) and IsPrime(6561*n+6560) and IsPrime(59049*n+59048)] // Vincenzo Librandi, Aug 05 2010

CROSSREFS

Subsequence of A023235, A023267, A023298, and A023326.

Sequence in context: A253712 A345605 A346279 * A226694 A345610 A346327

Adjacent sequences:  A023351 A023352 A023353 * A023355 A023356 A023357

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified October 3 22:17 EDT 2022. Contains 357237 sequences. (Running on oeis4.)