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A004139
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Odd primes excluding 5.
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2
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3, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Subsequence of A007401. [Reinhard Zumkeller, Jul 18 2011]
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REFERENCES
| John H. Conway, R. K. Guy, The Book of Numbers, Copernicus Press, p. 162.
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PROG
| (PARI) a(n)=if(n>1, prime(n+2), 3) \\ Charles R Greathouse IV, Aug 26 2011
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CROSSREFS
| Sequence in context: A102213 A158942 A138152 * A180346 A020632 A020596
Adjacent sequences: A004136 A004137 A004138 * A004140 A004141 A004142
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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