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A217601 Integer averages of squares of first primes. 91
4, 1314, 7128, 3081302, 4009568, 5312966, 16834447856, 2462344442400, 289274033242208, 46671783125431818542, 221000817555367050608, 618811172463743796896678 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

OEIS Wiki, Sums of powers of primes divisibility sequences

FORMULA

a(n) = A217600(n)/A111441(n)

EXAMPLE

a(2) = 1314 is the average of squares of first 19 primes (24966/19=1314).

PROG

(PARI) n=s=0; forprime(p=2, 1e8, s+=p^2; if(s%n++==0, print1(s/n", "))) \\ Charles R Greathouse IV, Apr 22 2015

CROSSREFS

Cf. A085450 = smallest m > 1 such that m divides Sum_{k=1..m} prime(k)^n.

Cf. A007504, A045345, A171399, A128165, A233523, A050247, A050248, A024450, A111441, A217599, A128166, A233862, A217600, A217601.

Sequence in context: A227850 A079711 A283260 * A172925 A167071 A274296

Adjacent sequences:  A217598 A217599 A217600 * A217602 A217603 A217604

KEYWORD

nonn,more

AUTHOR

Robert Price, Mar 19 2013

STATUS

approved

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Last modified June 16 06:46 EDT 2019. Contains 324145 sequences. (Running on oeis4.)