A178247 Decimal expansion of (269+11*sqrt(1086))/490.

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

Offset

1,2

Comments

Continued fraction expansion of (269+11*sqrt(1086))/490 is A033940.

Links

Table of n, a(n) for n=1..105.

Index entries for algebraic numbers, degree 2.

Formula

Minimal polynomial: 980*x^2 - 1076*x - 241. - Amiram Eldar, Apr 27 2026

Example

1.28877480647397915221022202389070610619215376576799...

Mathematica

RealDigits[(269+11Sqrt[1086])/490, 10, 120][[1]] (* Harvey P. Dale, Mar 18 2022 *)

Crossrefs

Cf. A178230 (decimal expansion of sqrt(1086)), A033940 (repeat 1, 3, 2, 6, 4, 5).

Sequence in context: A021780 A020769 A105388 * A048651 A243596 A256849

Adjacent sequences: A178244 A178245 A178246 * A178248 A178249 A178250

Keyword

cons,nonn

Author

Klaus Brockhaus, May 24 2010

Status

approved