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A079078 a(0) = 1, a(1) = 2; for n > 1, a(n) = prime(n)*a(n-2). 7
1, 2, 3, 10, 21, 110, 273, 1870, 5187, 43010, 150423, 1333310, 5565651, 54665710, 239322993, 2569288370, 12684118629, 151588013830, 773731236369, 10156396926610, 54934917782199, 741416975642530, 4339858504793721 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
EXAMPLE
a(5)=110 because 2*5*11=110, the product of the first, third and fifth primes.
PROG
(PARI) A079078(n)=prod(i=0, (n-1)\2, prime(n-2*i)) \\ - M. F. Hasler, May 04 2008
CROSSREFS
Sequence in context: A161522 A120484 A113202 * A285794 A148056 A148057
KEYWORD
nonn
AUTHOR
Michael Joseph Halm, Feb 02 2003
EXTENSIONS
Last term corrected by Jonathan Vos Post, Feb 09 2006
Edited and corrected by M. F. Hasler, May 06 2008
STATUS
approved

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)