A054972 Product of (sum of first n primes) and (product of first n primes).

4, 30, 300, 3570, 64680, 1231230, 29609580, 746876130, 22309287000, 834590426670, 32089678420800, 1461885412557570, 72411562719475980, 3676255934199278430, 201683848689025182480, 12416469379809407042130

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Formula

a(n) = A007504(n) * A002110(n).

Example

a(3)=300 because 2+3+5=10 and 2*3*5=30 and 10*30=300.

Crossrefs

Cf. A007504, A002110.

Sequence in context: A167139 A347994 A240958 * A052452 A348708 A307905

Adjacent sequences: A054969 A054970 A054971 * A054973 A054974 A054975

Keyword

easy,nonn

Author

Enoch Haga, May 15 2000

Extensions

Offset corrected by Sean A. Irvine, Mar 02 2022

Status

approved