A176523 -id:A176523 - cp's OEIS frontend

A010735 Period 2: repeat (9,10).

9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10, 9, 10

Offset: 0

N. J. A. Sloane

Continued fraction expansion of A176523. - R. J. Mathar, Mar 08 2012

Index entries for linear recurrences with constant coefficients, signature (0,1).

Table[9 + Mod[n, 2], {n, 0, 50}] (* Jinyuan Wang, Feb 26 2020 *)
PadRight[{},70,{9,10}] (* Harvey P. Dale, Sep 23 2021 *)

a(n)=n%2+9 \\ Charles R Greathouse IV, Jul 13 2016

G.f. ( -9-10*x ) / ( (x-1)*(1+x) ). - R. J. Mathar, Nov 21 2011

A176524 Decimal expansion of sqrt(235).

Original entry on oeis.org

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

Offset: 2

Klaus Brockhaus, Apr 23 2010

Continued fraction expansion of sqrt(235) is A040219.

			sqrt(235) = 15.32970971675589165655...

Cf. A002163 (decimal expansion of sqrt(5)), A010501 (decimal expansion of sqrt(47)), A176523 (decimal expansion of (45+3*sqrt(235))/10), A040219 (15 followed by (repeat 3, 30)).

RealDigits[Sqrt[235],10,120][[1]] (* Harvey P. Dale, Mar 12 2015 *)

cp's OEIS Frontend

A010735 Period 2: repeat (9,10).

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