|
| |
|
|
A165734
|
|
Period 2: repeat 6,30.
|
|
3
| |
|
|
6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30, 6, 30
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Continued fraction expansion of (15+sqrt(230))/5. [From Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Apr 28 2010]
|
|
|
LINKS
| Index entries for sequences related to linear recurrences with constant coefficients, signature (0,1).
|
|
|
FORMULA
| G.f.: 6x(1+5x)/((1-x)(1+x)). a(n)=6*A010686(n-1). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Sep 27 2009]
a(n)=18+12(-1)^n, with n>=1 [From Paolo P. Lava (paoloplava(AT)gmail.com), Sep 28 2009]
|
|
|
PROG
| (PARI) a(n)=30-n%2*24 \\ Charles R Greathouse IV, Jun 02 2011
|
|
|
CROSSREFS
| Cf. A124886, A002445, A040214.
Sequence in context: A143563 A122802 A051685 * A123624 A066197 A078638
Adjacent sequences: A165731 A165732 A165733 * A165735 A165736 A165737
|
|
|
KEYWORD
| nonn,easy
|
|
|
AUTHOR
| Paul Curtz (bpcrtz(AT)free.fr), Sep 25 2009
|
|
|
EXTENSIONS
| Edited by N. J. A. Sloane, Sep 25 2009
|
| |
|
|
