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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A115526 Inverse of number triangle A115524. 2
1, 1, -1, 1, 0, 1, 1, 0, 1, -1, 1, -1, 0, 0, 1, 1, -1, 0, 0, 1, -1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, -1, 1, 0, 1, -1, 0, 0, 0, 0, 1, 1, 0, 1, -1, 0, 0, 0, 0, 1, -1, 1, -1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, -1, 0, 0, 1, 0, 0, 0, 0, 0, 1, -1, 1, -1, 0, 0, 1, -1, 0, 0, 0, 0, 0, 0, 1, 1, -1, 0, 0, 1, -1, 0, 0, 0, 0, 0, 0, 1, -1, 1, 0, 1, 0, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Row sums are number of zeros in binary expansion of n+2, that is, A023416(n+2) [conjecture].

LINKS

Table of n, a(n) for n=0..111.

EXAMPLE

Triangle begins

1,

1, -1,

1, 0, 1,

1, 0, 1, -1,

1, -1, 0, 0, 1,

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

1, 0, 1, 0, 0, 0, 1,

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

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

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

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

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

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

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

1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1,

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

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

CROSSREFS

Sequence in context: A182741 A070909 A115954 * A239681 A054524 A110471

Adjacent sequences:  A115523 A115524 A115525 * A115527 A115528 A115529

KEYWORD

sign,tabl

AUTHOR

Paul Barry, Jan 25 2006

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 October 16 15:31 EDT 2019. Contains 328101 sequences. (Running on oeis4.)