A176103 Decimal expansion of (15+sqrt(285))/10.

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

Offset

1,1

Comments

Continued fraction expansion of (15+sqrt(285))/10 is A010703.

Links

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

Index entries for algebraic numbers, degree 2.

Formula

Minimal polynomial: 5*x^2 - 15*x - 3. - Amiram Eldar, Apr 27 2026

Example

3.18819430161341321831168894095221099888484771576248...

Mathematica

RealDigits[(15+Sqrt[285])/10, 10, 120][[1]] (* Harvey P. Dale, Aug 04 2020 *)

Crossrefs

Cf. A176104 (decimal expansion of sqrt(285)), A010703 (repeat 3, 5).

Sequence in context: A242440 A245651 A007023 * A388099 A388960 A388353

Adjacent sequences: A176100 A176101 A176102 * A176104 A176105 A176106

Keyword

cons,nonn

Author

Klaus Brockhaus, Apr 10 2010

Status

approved