A176440 Decimal expansion of (14+sqrt(210))/4.

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

Offset

1,1

Comments

Continued fraction expansion of (14+sqrt(210))/4 is A010728.

Links

Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Index entries for algebraic numbers, degree 2.

Formula

Minimal polynomial: 8*x^2 - 56*x - 7. - Amiram Eldar, Apr 27 2026

Example

7.12284418654735964342966603929244293078503321868974...

Mathematica

RealDigits[(14+Sqrt[210])/4, 10, 120][[1]]  (* Harvey P. Dale, Apr 13 2011 *)

Crossrefs

Cf. A176441 (decimal expansion of sqrt(210)), A010728 (repeat 7, 8).

Sequence in context: A040052 A134898 A371946 * A216983 A021588 A224998

Adjacent sequences: A176437 A176438 A176439 * A176441 A176442 A176443

Keyword

cons,nonn

Author

Klaus Brockhaus, Apr 19 2010

Status

approved