A382552 Decimal expansion of Sum_{p prime} 1/((p - 1)^2*p).

6, 0, 1, 9, 0, 8, 3, 2, 5, 6, 9, 8, 8, 4, 0, 1, 6, 0, 0, 5, 2, 8, 8, 5, 6, 7, 0, 6, 6, 6, 4, 9, 7, 3, 0, 3, 5, 6, 0, 8, 5, 8, 6, 2, 4, 0, 9, 2, 1, 3, 1, 4, 1, 0, 3, 9, 8, 1, 8, 3, 2, 6, 8, 5, 3, 4, 5, 2, 6, 6, 8, 4, 6, 5, 2, 3, 2, 1, 8, 5, 7, 5, 9, 6, 1, 0, 8, 8, 9, 3, 5, 9, 3, 2, 6, 7, 2, 9, 6, 1

Offset

0,1

Links

Table of n, a(n) for n=0..99.

Index to constants which are prime zeta sums {1,2,0}.

Formula

Equals -A136141 + A086242.

Equals Sum_{k>=3} (k-2) * P(k), where P is the prime zeta function. - Amiram Eldar, Apr 01 2025

Example

0.60190832569884016005288567066649730356085862...

Prog

(PARI) sumeulerrat(1/((p-1)^2*p)) \\ Amiram Eldar, Apr 01 2025

Crossrefs

Cf. A086242, A136141.

Sequence in context: A019846 A364898 A320906 * A195445 A215080 A317446

Adjacent sequences: A382549 A382550 A382551 * A382553 A382554 A382555

Keyword

nonn,cons

Author

Artur Jasinski, Mar 31 2025

Status

approved