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 A274414 #5 Jun 21 2016 10:14:40 %S A274414 1,1,2,0,2,4,8,3,9,7,0,3,9,2,4,2,0,8,2,2,7,2,5,1,6,5,4,8,2,2,4,2,0,9, %T A274414 5,2,6,2,7,5,7,7,6,6,7,1,9,7,9,0,6,8,8,9,7,3,9,2,2,4,5,8,6,6,4,9,8,4, %U A274414 1,4,0,3,9,1,8,3,6,7,2,3,4,4,4,4,8,4,3,6,5,7,9,8,9,6,6,6,2,8,4,7,9,2,2 %N A274414 Decimal expansion of V_2N, a Quantum Field Theory constant related to the coloring of the tetrahedron with two masses (non-adjacent case). %D A274414 Jonathan Borwein and Peter Borwein, Experimental and Computational Mathematics: Selected Writings, Perfectly Scientific Press, 2010, p. 106. %H A274414 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 A274414 V_2N = 6 zeta(3) - 13/2 zeta(4) - 8 U, where U is A255685. %e A274414 1.1202483970392420822725165482242095262757766719790688973922458664984... %t A274414 U = A255685 = Pi^4/180 + (Pi^2/12)*Log[2]^2 - (1/12)*Log[2]^4 - 2*PolyLog[4, 1/2]; %t A274414 V2N = 6 Zeta[3] - 13/2 Zeta[4] - 8 U; %t A274414 RealDigits[V2N, 10, 103][[1]] %Y A274414 Cf. A274412 (V_1), A274413 (V_2A), A274415 (V_3T), A274416 (V_3S), A274417 (V_3L), A274418 (V_4A), A274419 (V_4N), A274420 (V_5), A274421 (V_6). %K A274414 nonn,cons %O A274414 1,3 %A A274414 _Jean-François Alcover_, Jun 21 2016