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A156153
Primes p such that p == 2 (mod pi(p)) and pi(p) is prime.
4
5, 41, 367, 9559817, 514275529
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..5.
FORMULA
a(n) = A000040(A156154(n)) = A000040(A000040(A156155(n))).
PROG
(PARI) p=c=0; until(0, until( isprime(c++), p=nextprime(p+1)); (p-2)%c & next; print1(p, ", ")); \\ Modified by Jinyuan Wang, Feb 22 2020
CROSSREFS
Cf. A023144, A156152, A156154, A156155.
Sequence in context: A155612 A145215 A083884 * A026000 A058475 A199684
Adjacent sequences: A156150 A156151 A156152 * A156154 A156155 A156156
KEYWORD
nonn,hard,more
AUTHOR
M. F. Hasler, Feb 04 2009
STATUS
approved

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Last modified October 5 01:55 EDT 2024. Contains 376527 sequences.
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