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 A099788 a(n) = Product_{i=1..2n} prime(i). 3
 1, 6, 210, 30030, 9699690, 6469693230, 7420738134810, 13082761331670030, 32589158477190044730, 117288381359406970983270, 557940830126698960967415390, 3217644767340672907899084554130, 23768741896345550770650537601358310, 232862364358497360900063316880507363070 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..100 MAPLE a:=n-> mul(ithprime(j), j=1..2*n): seq(a(n), n=0..13); # Emeric Deutsch MATHEMATICA Table[Product[Prime[i], {i, 2n}], {n, 0, 20}] (* Wesley Ivan Hurt, Mar 13 2014 *) PROG (PARI) a(n) = prod(i=1, 2*n, prime(i)); \\ Michel Marcus, Mar 15 2014 (MAGMA) [1] cat [&*[NthPrime(j): j in [1..2*n]]: n in [1..20]]; // G. C. Greubel, Sep 04 2019 (Sage) [1]+[product(nth_prime(j) for j in (1..2*n)) for n in (1..20)] # G. C. Greubel, Sep 04 2019 CROSSREFS Cf. A000040, A099800. Bisection of A002110. Subset of A030229. Sequence in context: A087639 A028350 A238685 * A126676 A073100 A093536 Adjacent sequences:  A099785 A099786 A099787 * A099789 A099790 A099791 KEYWORD nonn,easy AUTHOR N. J. A. Sloane, Nov 19 2004 EXTENSIONS More terms from Emeric Deutsch, Feb 23 2005 Name revised by Wesley Ivan Hurt, Mar 13 2014 STATUS approved

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Last modified January 23 04:16 EST 2020. Contains 331168 sequences. (Running on oeis4.)