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A048670 Jacobsthal function for the product of the first n primes (A002110). 6
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; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

Dickson, L. E., History of the Theory of Numbers, Vol. 1, p. 439, Chelsea, 1952.

LINKS

Thomas R. Hagedorn, Computation of Jacobsthal's function h(n) for n < 50, Math. Comp. 78 (2009) 1073-1087. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 31 2010]

FORMULA

a(n)=A058989(n)+1 (see that entry for much more information).

CROSSREFS

Cf. A048669, A002110, A005867.

Sequence in context: A023499 A103445 A001747 * A077625 A027383 A138016

Adjacent sequences:  A048667 A048668 A048669 * A048671 A048672 A048673

KEYWORD

nonn,nice

AUTHOR

Jan Kristian Haugland (jankrihau(AT)hotmail.com)

EXTENSIONS

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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Last modified February 16 07:03 EST 2012. Contains 205867 sequences.