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A109819 Product of primes between n and n^2. 1
1, 6, 105, 5005, 37182145, 6685349671, 20496326086283047, 558516101711461766587, 15322117939717490037614688353, 10978895066407230594062391177770267 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

a(3) = 105 because 3, 5 and 7 are the A073882(3) = 3 primes in the interval from 3 to 3^2 inclusive and 3 * 5 * 7 = 105. (a(1) = 1 is the empty product.).

PROG

(PARI) for(n=1, 15, print1(prod(k=n, n^2, if(isprime(k), k, 1)), ", "))

CROSSREFS

Cf. A109818 (sum of same primes), A073882 (number of primes between n and n^2).

Sequence in context: A126467 A013294 A013300 * A162130 A048707 A075068

Adjacent sequences:  A109816 A109817 A109818 * A109820 A109821 A109822

KEYWORD

easy,nonn

AUTHOR

Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jul 02 2005

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Last modified February 17 11:46 EST 2012. Contains 206011 sequences.