This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A382575 #6 Apr 01 2025 20:21:26
%S A382575 1,2,3,0,4,4,7,1,1,1,8,2,3,2,0,5,6,1,2,5,7,1,5,1,1,7,3,6,9,1,1,6,8,3,
%T A382575 1,8,1,9,6,7,2,0,1,6,3,4,3,5,3,7,9,3,1,3,7,1,5,0,6,5,4,1,3,8,7,3,5,8,
%U A382575 7,0,8,6,9,4,4,2,4,7,7,3,4,6,5,6,9,2,3,1,4,5,6,5,5,5,2,5,6,7,2,4
%N A382575 Decimal expansion of Sum_{p prime} (p - 1)/(p + 1)^3 .
%H A382575 <a href="/wiki/Index_to_constants#Start_of_section_P">Index to constants which are prime zeta sums</a> {0,-1,3}.
%F A382575 Equals A382554 - 2*A382555.
%F A382575 Equals Sum_{k>=2} (-1)^k * (k-1)^2 * P(k), where P is the prime zeta function. - _Amiram Eldar_, Apr 01 2025
%e A382575 0.12304471118232056125715117369116831819672016343537931371506541387358...
%o A382575 (PARI) sumeulerrat((p-1)/(p+1)^3) \\ _Amiram Eldar_, Apr 01 2025
%Y A382575 Cf. A382554, A382555.
%K A382575 nonn,cons
%O A382575 0,2
%A A382575 _Artur Jasinski_, Mar 31 2025