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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A127752 Row sums of inverse of number triangle A(n,k)=if(k<=n,if(n<=2k,1/(3n+1),0),0). 1
1, 4, 3, 7, 3, 6, 3, 10, 3, 6, 3, 9, 3, 6, 3, 13, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 16, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 15, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 19, 3, 6, 3, 9, 3, 6, 3, 12, 3, 6, 3, 9, 3, 6, 3, 15, 3 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

a(n) mod 2 is first Feigenbaum symbolic sequence A035263 (conjecture). Row sums of number triangle A127751.

CROSSREFS

Sequence in context: A192986 A072816 A046548 * A198874 A093051 A089020

Adjacent sequences:  A127749 A127750 A127751 * A127753 A127754 A127755

KEYWORD

nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jan 28 2007

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 15 15:20 EST 2012. Contains 205823 sequences.