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Search: id:A101087
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| 4, 6, 7, 8, 9, 10, 11, 15, 17, 19, 23, 25, 26, 29, 31, 47, 53, 65, 67, 71, 73, 113, 127, 199, 257, 349, 421, 433, 449, 691, 761, 823, 991, 1237, 1277, 1399, 1531, 1571, 3461, 3697, 4933, 6199, 7351
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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There are only 9 composites numbers in the entire sequence, namely: 4, 6, 8, 9, 10, 15, 25, 26 and 65.
If we are prepared to accept probable primes, then the sequence continues as follows: 9551, 9719, 11681, 12037, 14629, 14951, 19079, 20327, 22549, 30517, 51511, 52813, 60923, 73943, 79687, 91249, 115321, 117017, 169493, 172411, 174413, 237053, 285631, 318751, 327433 - David Broadhurst (D.Broadhurst(AT)open.ac.uk), May 23 2007
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LINKS
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G. P. Michon, Never Back to -1.
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CROSSREFS
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Cf. A001607, A077020 (all values) and A101088 (prime values only). Similar to A001605 (Fibonacci primes), A000043 (Mersenne primes), A096650 (Pell primes), etc.
Sequence in context: A123860 A122817 A074764 this_sequence A138887 A031949 A043693
Adjacent sequences: A101084 A101085 A101086 this_sequence A101088 A101089 A101090
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KEYWORD
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nonn
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AUTHOR
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Gerard P. Michon (g.michon(AT)att.net), Dec 01 2004
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