A161489 Decimal expansion of (52323 + 26522*sqrt(2))/191^2.

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

Offset: 1

Author

Klaus Brockhaus, Jun 13 2009

Keywords

• cons
• nonn

Comments

Equals lim_{n -> infinity} b(n)/b(n-1) for n mod 3 = 0, b = A161486.

Equals lim_{n -> infinity} b(n)/b(n-1) for n mod 3 = 1, b = A161487.

Examples

			(52323 + 26522*sqrt(2))/191^2 = 2.46239884052682840065...
		

Links

• G. C. Greubel, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A161486, A161487, A002193 (decimal expansion of sqrt(2)), A161488 (decimal expansion of (209+60*sqrt(2))/191).

Programs

Magma

(52323 + 26522*Sqrt(2))/191^2; // G. C. Greubel, Apr 06 2018

Mathematica

RealDigits[(52323+26522*Sqrt[2])/191^2, 10, 100][[1]] (* G. C. Greubel, Apr 06 2018 *)

PARI

(52323 + 26522*sqrt(2))/191^2 \\ G. C. Greubel, Apr 06 2018

Formula

Equals (298 + 89*sqrt(2))/(298 - 89*sqrt(2)).

Equals (3 + 2*sqrt(2))*(20 - 3*sqrt(2))^2/(20 + 3*sqrt(2))^2.