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A089923
Duplicate of
A100003
.
0
5, 17, 89, 383
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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
Table of n, a(n) for n=5..8.
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
Adjacent sequences:
A089920
A089921
A089922
*
A089924
A089925
A089926
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.)