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A064820
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Product_{k=1..4*n-9} p(k) - p(4n)^4 where p(i) = i-th prime.
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1
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-1874131, -7379971, 200535078449, 614889782525749169, 7858321551080266924799489, 267064515689275851355623723492869, 23984823528925228172706521638691738510609, 4014476939333036189094441199026045136644989502689, 1492182350939279320058875736615841068547583863325477042409
(list; graph; refs; listen; history; internal format)
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OFFSET
| 3,1
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COMMENTS
| It is known that a(n) > 0 for n >= 5.
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REFERENCES
| S. E. Mamangakis, Synthetic proofs of some prime number inequalities, Duke Math. J., 29 (1962), 471-473.
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LINKS
| Harry J. Smith, Table of n, a(n) for n=3,...,50
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PROG
| (PARI) { for (n=3, 50, p=prod(k=1, 4*n-9, prime(k)); write("b064820.txt", n, " ", p - prime(4*n)^4) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 27 2009]
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CROSSREFS
| Sequence in context: A115495 A015347 A145276 * A032595 A032596 A032597
Adjacent sequences: A064817 A064818 A064819 * A064821 A064822 A064823
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KEYWORD
| sign
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Oct 23 2001
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