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A111179
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a(n) = Sum_{k=1..n} prime(k)!, where prime(k) is k-th prime.
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1
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2, 8, 128, 5168, 39921968, 6266942768, 355693695038768, 122000794103870768, 25852138739679080510768, 8841762019591840694222696510768, 8231680416197514658419785576510768, 13763753099458025462513494240000687976510768
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OFFSET
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1,1
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LINKS
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EXAMPLE
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2, 3, 5 and 7 are the first 4 primes. So a(4) = 2! + 3! + 5! + 7! = 2 +6 +120 +5040 = 5168.
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MATHEMATICA
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PROG
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(PARI) a(n)=sum(k=1, n, prime(k)!) \\ Lambert Klasen (lambert.klasen(AT)gmx.net), Oct 28 2005
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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EXTENSIONS
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More terms from Lambert Klasen (lambert.klasen(AT)gmx.net) and Robert G. Wilson v, Oct 28 2005
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STATUS
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approved
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