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A089923 Duplicate of A100003. 0
5, 17, 89, 383 (list; graph; refs; listen; history; text; internal format)
OFFSET
5,1
COMMENTS
Previous name: Largest prime in the reverse concatenation of the first n consecutive prime numbers when that concatenation is a prime.
LINKS
EXAMPLE
53 is the reverse concatenation of the consecutive primes 3 and 5. 53 is prime.
PROG
(PARI) revprime2(n) = { y=3; forprime(x=5, n, y=concat(Str(x), Str(y)); z=eval(y); if(ispseudoprime(z), print(x", "z)) ) }
CROSSREFS
Sequence in context: A153499 A012782 A026685 * A374292 A145041 A212291
KEYWORD
dead
AUTHOR
Cino Hilliard, Jan 11 2004
EXTENSIONS
Edited by T. D. Noe, Oct 30 2008
STATUS
approved

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Last modified July 21 09:16 EDT 2024. Contains 374472 sequences. (Running on oeis4.)