A245772 Decimal expansion of the entropy of folding of the triangular lattice.

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

Offset: 0

Author

Jean-François Alcover, Aug 01 2014

Keywords

• nonn
• cons

Examples

			0.1895600483163599659177242011169696602042850762146366815851796...
		

References

• Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 5.24 Lieb's square ice constant, p. 415.

Links

• Eric Weisstein's MathWorld, Baxter's Four-Coloring Constant.

Crossrefs

Cf. A224273.

Programs

Mathematica

RealDigits[(1/2)*Log[(3*Gamma[1/3]^3)/(4*Pi^2)], 10, 104] // First

Formula

(1/2)*log(A224273).