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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A078796 a(n)=2*ceil(n*tau)-ceil(n*sqrt(5)) where tau=(1+sqrt(5))/2 is the Golden ratio. 0
1, 3, 3, 5, 6, 6, 8, 8, 9, 11, 11, 13, 14, 14, 16, 16, 17, 19, 19, 21, 21, 22, 24, 24, 26, 27, 27, 29, 29, 30, 32, 32, 34, 35, 35, 37, 37, 39, 40, 40, 42, 42, 43, 45, 45, 47, 48, 48, 50, 50, 51, 53, 53, 55, 55, 56, 58, 58, 60, 61, 61, 63, 63, 64, 66, 66, 68, 69, 69, 71, 71, 73 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

FORMULA

a(A005652(n))=A005652(n); a(A001950(n))=A001950(n)+1

PROG

(PARI) a(n)=2*ceil(n*(1+sqrt(5))/2)-ceil(n*sqrt(5))

CROSSREFS

Cf. A078588.

Sequence in context: A134636 A088564 A161560 * A201929 A079789 A131209

Adjacent sequences:  A078793 A078794 A078795 * A078797 A078798 A078799

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Dec 05 2002

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

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

Last modified February 16 13:02 EST 2012. Contains 205909 sequences.