A246772 Decimal expansion of 'u', an auxiliary constant associated with the asymptotic number of row-convex polyominoes.

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

Offset: 0

Author

Jean-François Alcover, Sep 03 2014

Keywords

• nonn
• cons
• easy

Examples

			0.180915501881560609515895773010001800494429103399881...
		

Links

• Steven R. Finch, Errata and Addenda to Mathematical Constants. p. 48.

Crossrefs

Cf. A001169, A006958, A067675, A246773.

Programs

Mathematica

u = Root[944*x^3 - 295*x^2 + 28*x - 1, x, 1]; RealDigits[u, 10, 103] // First

Formula

u = first root of 944*x^3 - 295*x^2 + 28*x - 1.

A001169(n) ~ u*v^n, where v = A246773.