login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A176636 Periodic sequence: Repeat 57, 71. 2
57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57, 71, 57 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Continued fraction expansion of (4047+sqrt(16394397))/142.

Inverse binomial transform of 57 followed by 128*A000079.

Third inverse binomial transform of A176635.

LINKS

Table of n, a(n) for n=0..68.

FORMULA

a(n) = 64-7*(-1)^n.

a(n) = -a(n-1)+128 for n > 0; a(0) = 57.

a(n) = a(n-2) for n > 1; a(0) = 57, a(1) = 71.

G.f.: (57+71*x)/((1-x)*(1+x)).

MATHEMATICA

PadRight[{}, 100, {57, 71}] (* Harvey P. Dale, Jun 18 2014 *)

PROG

(MAGMA) &cat[ [57, 71]: k in [1..35] ];

CROSSREFS

Cf. A000079 (powers of 2), A176635, A176713 (decimal expansion of (4047+sqrt(16394397))/142).

Sequence in context: A056082 A218562 A067809 * A072054 A230956 A039429

Adjacent sequences:  A176633 A176634 A176635 * A176637 A176638 A176639

KEYWORD

easy,cofr,nonn

AUTHOR

Klaus Brockhaus, Apr 22 2010

EXTENSIONS

Comment, crossref and keyword cofr added by Klaus Brockhaus, Apr 24 2010

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified November 23 07:56 EST 2014. Contains 249839 sequences.