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Search: id:A060882
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| -1, -1, 1, 23, 199, 2297, 30013, 510491, 9699667, 223092841, 6469693199, 200560490093, 7420738134769, 304250263527167, 13082761331669983, 614889782588491357, 32589158477190044671, 1922760350154212639009
(list; graph; listen)
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OFFSET
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0,4
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COMMENT
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It is well-known and easy to prove (see Honsbeger) that a(n) > 0 for n > 1, [N. J. A. Sloane, Jul 05 2009]
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REFERENCES
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R. Honsberger, Mathematical Diamonds, MAA, 2003, see p. 79. [Added by N. J. A. Sloane, Jul 05 2009]
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LINKS
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Harry J. Smith, Table of n, a(n) for n=0,...,100
Hisanori Mishima, Factorizations of many number sequences
Hisanori Mishima, Factorizations of many number sequences
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MAPLE
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pp:=n->mul(ithprime(i), i=1..n);
[seq(pp(n)-ithprime(n+1), n=1..20)];
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PROGRAM
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(PARI) { n=-1; m=1; forprime (p=2, prime(101), write("b060882.txt", n++, " ", m - p); m*=p; ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 13 2009]
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CROSSREFS
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Cf. A002110, A060881, A064819.
Sequence in context: A058193 A065314 A065316 this_sequence A128334 A107956 A022683
Adjacent sequences: A060879 A060880 A060881 this_sequence A060883 A060884 A060885
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KEYWORD
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sign
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), May 05 2001
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