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Search: id:A115347
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| A115347 |
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Fibonacci primes that are also primes when their digits are reversed. |
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+0
1
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OFFSET
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1,1
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COMMENT
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There are no other numbers that qualify through the 10000th Fibonacci number (which has 2,090 digits).
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EXAMPLE
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13 is the 7th Fibonacci number. It is prime, and its reversal, 31, is also prime.
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MATHEMATICA
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Select[Fibonacci[Range[10000]], PrimeQ[ # ]&&PrimeQ[FromDigits[Reverse[IntegerDigits[ # ]]]]&]
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CROSSREFS
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Cf. A000045.
Sequence in context: A041639 A006985 A042907 this_sequence A126333 A039575 A143743
Adjacent sequences: A115344 A115345 A115346 this_sequence A115348 A115349 A115350
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KEYWORD
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nonn,base
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AUTHOR
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Harvey P. Dale (hpd1(AT)nyu.edu), Mar 07 2006
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