A111179 a(n) = Sum_{k=1..n} prime(k)!, where prime(k) is k-th prime.

2, 8, 128, 5168, 39921968, 6266942768, 355693695038768, 122000794103870768, 25852138739679080510768, 8841762019591840694222696510768, 8231680416197514658419785576510768, 13763753099458025462513494240000687976510768

Offset

1,1

Links

Table of n, a(n) for n=1..12.

Example

2, 3, 5 and 7 are the first 4 primes. So a(4) = 2! + 3! + 5! + 7! = 2 +6 +120 +5040 = 5168.

Mathematica

Table[ Sum[ Prime[i]!, {i, n}], {n, 12}] (* Robert G. Wilson v, Oct 28 2005 *)

Prog

(PARI) a(n)=sum(k=1, n, prime(k)!) \\ Lambert Klasen (lambert.klasen(AT)gmx.net), Oct 28 2005

Crossrefs

Cf. A039716.

Sequence in context: A114977 A011822 A307124 * A178173 A058891 A274171

Adjacent sequences: A111176 A111177 A111178 * A111180 A111181 A111182

Keyword

easy,nonn

Author

Leroy Quet, Oct 22 2005

Extensions

More terms from Lambert Klasen (lambert.klasen(AT)gmx.net) and Robert G. Wilson v, Oct 28 2005

Status

approved