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A243054
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a(0)=1, and for n >= 1, a(n) = p_n * A002110(n) / 2, where p_n is the n-th prime.
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4
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1, 2, 9, 75, 735, 12705, 195195, 4339335, 92147055, 2565568005, 93810551835, 3108687597015, 137283655493985, 6237130402307805, 281279368630905645, 14449909890829548135, 863612699645536185345, 56721430329549272852565, 3577295631461912614989735, 263253771961188946371949515
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OFFSET
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0,2
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COMMENTS
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From n >= 2 onward: a(n) = the product of the first n-1 odd primes multiplied by the n-th prime.
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LINKS
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FORMULA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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