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A089923
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Largest prime in the reverse concatenation of the first n consecutive prime numbers when that concatenation is a prime.
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0
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OFFSET
| 5,1
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EXAMPLE
| 53 is the reverse concatenation of the consecutive primes 3 and 5. 53 is prime.
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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)) ) }
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CROSSREFS
| Sequence in context: A153499 A012782 A026685 * A145041 A179684 A197875
Adjacent sequences: A089920 A089921 A089922 * A089924 A089925 A089926
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KEYWORD
| nonn,base
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AUTHOR
| Cino Hilliard (hillcino368(AT)gmail.com), Jan 11 2004
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EXTENSIONS
| Edited by T. D. Noe (noe(AT)sspectra.com), Oct 30 2008
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