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Search: id:A118222
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| A118222 |
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Numbers n such that n! * p(n)# + 1 is prime. |
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+0
2
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OFFSET
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1,2
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COMMENT
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Seven terms found and primes proved by PrimeForm ([N-1, Brillhart-Lehmer-Selfridge]). There are no more terms <= 2100.
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EXAMPLE
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3 is a term as 3! * p(3)# + 1 = 3*2*1 * 5*3*2 + 1 = 181, a prime.
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CROSSREFS
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Cf. A118223.
Sequence in context: A097929 A041501 A144420 this_sequence A067092 A041133 A113700
Adjacent sequences: A118219 A118220 A118221 this_sequence A118223 A118224 A118225
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KEYWORD
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nonn
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AUTHOR
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Rick L. Shepherd (rshepherd2(AT)hotmail.com), Apr 15 2006
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