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A007467 Product of next n primes.
(Formerly M2085)
2
2, 15, 1001, 215441, 95041567, 66238993967, 63009974049301, 87796770491685553, 173955570033393401009, 421385360593324054690769, 1172248885422611971256631487, 5253333091597988325086927419397, 21476254926032216698855019795863013 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..185

R. K. Hoeflin, Titan Test

MATHEMATICA

terms=20; With[{prs=Prime[Range[(terms(terms+1))/2]]}, Table[ Times@@ Take[prs, {(n(n-1))/2+1, (n(n+1))/2}], {n, terms}]] (* Harvey P. Dale, Aug 06 2013 *)

PROG

(PARI) a(n)=my(s=1); forprime(p=prime(n*(n-1)/2+1), prime(n*(n+1)/2), s*=p); s \\ Charles R Greathouse IV, Aug 06 2013

CROSSREFS

Sequence in context: A179432 A007542 A090604 * A132317 A068409 A096232

Adjacent sequences:  A007464 A007465 A007466 * A007468 A007469 A007470

KEYWORD

easy,nonn

AUTHOR

N. J. A. Sloane, Simon Plouffe

EXTENSIONS

Corrected and extended by Harvey P. Dale, Aug 06 2013

STATUS

approved

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Last modified October 23 09:28 EDT 2019. Contains 328345 sequences. (Running on oeis4.)