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A048054
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Number of n-digit reversible primes (emirps).
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13
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OFFSET
| 1,1
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COMMENTS
| The count includes palindromes.
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REFERENCES
| J. L. Boal and J. H. Bevis, Permutable primes. Math. Mag., 55 (N0. 1, 1982), 38-41. [From N. J. A. Sloane, Jan 19 2012]
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EXAMPLE
| 2, 3, 5 and 7 are 1-digit reversible primes, so a(1)=4.
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CROSSREFS
| Cf. A003684, A006567, A007628, A046732, A048051, A048052, A048053, A048895.
Sequence in context: A149169 A138544 A093149 * A149170 A024053 A197970
Adjacent sequences: A048051 A048052 A048053 * A048055 A048056 A048057
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KEYWORD
| base,nonn
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AUTHOR
| Jud McCranie (JudMcCranie(AT)ugaalum.uga.edu)
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