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A079078
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a(0) = 1, a(1) = 2; for n > 1, a(n) = prime(n)*a(n-2).
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7
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1, 2, 3, 10, 21, 110, 273, 1870, 5187, 43010, 150423, 1333310, 5565651, 54665710, 239322993, 2569288370, 12684118629, 151588013830, 773731236369, 10156396926610, 54934917782199, 741416975642530, 4339858504793721
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OFFSET
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0,2
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LINKS
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EXAMPLE
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a(5)=110 because 2*5*11=110, the product of the first, third and fifth primes.
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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