A274413 Decimal expansion of V_2A, a Quantum Field Theory constant related to the coloring of the tetrahedron with two masses (adjacent case).

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

Offset: 1

Author

Jean-François Alcover, Jun 21 2016

Keywords

• nonn
• cons

Examples

			1.80072525040187475481841048636286043071616299444935875233874825483...
		

References

• Jonathan Borwein and Peter Borwein, Experimental and Computational Mathematics: Selected Writings, Perfectly Scientific Press, 2010, p. 106.

Links

• David J. Broadhurst, Massive 3-loop Feynman diagrams reducible to SC* primitives of algebras of the sixth root of unity, arXiv:hep-th/9803091, 1998; p. 18.

Crossrefs

Cf. A274412 (V_1), A274414 (V_2N), A274415 (V_3T), A274416 (V_3S), A274417 (V_3L), A274418 (V_4A), A274419 (V_4N), A274420 (V_5), A274421 (V_6).

Programs

Mathematica

V2A = 6 Zeta[3] - 5 Zeta[4];
RealDigits[V2A, 10, 101][[1]]

PARI

6*zeta(3) - 5*zeta(4) \\ Charles R Greathouse IV, Feb 04 2025

Formula

V_2A = 6 zeta(3) - 5 zeta(4).