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 A274416 #5 Jun 21 2016 10:15:27 %S A274416 2,8,6,0,8,6,2,2,2,4,1,3,9,3,2,7,3,5,0,2,7,2,7,8,4,5,6,7,7,7,3,2,4,1, %T A274416 9,1,7,5,6,1,4,4,1,4,6,2,0,2,0,1,0,0,0,3,9,5,0,0,1,6,6,1,1,9,6,6,7,1, %U A274416 7,8,3,1,2,4,1,1,5,2,0,3,7,5,8,3,6,2,8,4,1,4,8,7,0,9,2,5,4,4,4,9,8,8,7 %N A274416 Decimal expansion of V_3S, a Quantum Field Theory constant [negated] related to the coloring of the tetrahedron with three masses (star case). %D A274416 Jonathan Borwein and Peter Borwein, Experimental and Computational Mathematics: Selected Writings, Perfectly Scientific Press, 2010, p. 106. %H A274416 David J. Broadhurst, <a href="http://arxiv.org/abs/hep-th/9803091">Massive 3-loop Feynman diagrams reducible to SC* primitives of algebras of the sixth root of unity</a>, arXiv:hep-th/9803091, 1998; p. 18. %F A274416 V_3S = 6 zeta(3) - 11/2 zeta(4) - 4 C^2, where C is A143298. %e A274416 -2.860862224139327350272784567773241917561441462020100039500166119667... %t A274416 C0 = A143298 = (9 - PolyGamma[1, 2/3] + PolyGamma[1, 4/3])/(4*Sqrt[3]); %t A274416 V3S = 6 Zeta[3] - 11/2 Zeta[4] - 4 C0^2; %t A274416 RealDigits[V3S, 10, 103][[1]] %Y A274416 Cf. A274412 (V_1), A274413 (V_2A), A274414 (V_2N), A274415 (V_3T), A274417 (V_3L), A274418 (V_4A), A274419 (V_4N), A274420 (V_5), A274421 (V_6). %K A274416 nonn,cons %O A274416 1,1 %A A274416 _Jean-François Alcover_, Jun 21 2016