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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A114116 1's-counting matrix: row sums give number of 1's in binary expansion of n+1. 2
1, 0, 1, 2, -1, 1, -1, 2, -1, 1, 1, 0, 1, -1, 1, 1, 0, 0, 1, -1, 1, 3, -2, 2, -1, 1, -1, 1, -2, 3, -2, 2, -1, 1, -1, 1, 0, 1, 0, 0, 1, -1, 1, -1, 1, 0, 1, 0, 0, 0, 1, -1, 1, -1, 1, 2, -1, 2, -2, 2, -1, 1, -1, 1, -1, 1, 0, 1, -1, 2, -2, 2, -1, 1, -1, 1, -1, 1, 2, -1, 1, 0, 0, 0, 1, -1, 1, -1, 1, -1, 1, 2, -1, 1, 0, 0, 0, 0, 1, -1, 1, -1, 1, -1, 1, 4, -3, 3, -2, 2 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

First column is -A037861(n+1). Row sums are A000120. Product of partial sum matrix (1/(1-x),x) and A114115. Inverse is A114117.

LINKS

Table of n, a(n) for n=0..109.

EXAMPLE

Triangle begins

1;

0, 1;

2,-1, 1;

-1, 2,-1, 1;

1, 0, 1,-1, 1;

1, 0, 0, 1,-1, 1;

3,-2, 2,-1, 1,-1, 1;

CROSSREFS

Sequence in context: A116861 A105242 A221362 * A054532 A260415 A214710

Adjacent sequences:  A114113 A114114 A114115 * A114117 A114118 A114119

KEYWORD

sign,tabl

AUTHOR

Paul Barry, Nov 13 2005

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 22 16:17 EDT 2019. Contains 326178 sequences. (Running on oeis4.)