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A001259
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A special sequence of primes.
(Formerly M2423 N0958)
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0
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3, 5, 7, 17, 19, 37, 97, 113, 257, 401, 487, 631, 971, 1297, 1801, 19457, 22051, 28817, 65537, 157303, 160001
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Holt shows this sequence is complete. - T. D. Noe (noe(AT)sspectra.com), Jul 28 2005
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REFERENCES
| Jeffery J. Holt, The minimal number of solutions to phi(n)=phi(n+k), Math. Comp., 72 (2003), 2059-2061.
Schinzel, A.; Wakulicz, Andrzej; Sur l'equation phi(x+k)=phi(x). II. Acta Arith. 5 1959 425-426.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A169628 A171254 A092951 * A087126 A062547 A125739
Adjacent sequences: A001256 A001257 A001258 * A001260 A001261 A001262
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KEYWORD
| nonn,fini,full
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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