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Search: id:A048670
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| A048670 |
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Jacobsthal function for the product of the first n primes (A002110). |
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+0
7
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| 2, 4, 6, 10, 14, 22, 26, 34, 40, 46, 58, 66, 74, 90, 100, 106, 118, 132, 152, 174, 190, 200, 216, 234, 258, 264, 282, 300, 312, 330, 354, 378, 388, 414, 432, 450, 476, 492, 510, 538, 550, 574, 600, 616, 642, 658, 686, 718, 742
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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Dickson, L. E., History of the Theory of Numbers, Vol. 1, p. 439, Chelsea, 1952.
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FORMULA
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a(n)=A058989(n)+1 (see that entry for much more information).
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CROSSREFS
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Cf. A048669, A002110, A005867.
Sequence in context: A023499 A103445 A001747 this_sequence A077625 A027383 A138016
Adjacent sequences: A048667 A048668 A048669 this_sequence A048671 A048672 A048673
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KEYWORD
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nonn,nice
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AUTHOR
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Jan Kristian Haugland (jankrihau(AT)hotmail.com)
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EXTENSIONS
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4 more terms from Max Alekseyev, Apr 09 2006
Terms a(25) onwards from Tom Hagedorn (hagedorn(AT)tcnj.edu), Feb 21 2007
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