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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A113141 Inverse of a Delannoy related triangle. 2
1, -3, 1, 2, -5, 1, -2, 10, -7, 1, 2, -14, 22, -9, 1, -2, 18, -46, 38, -11, 1, 2, -22, 78, -106, 58, -13, 1, -2, 26, -118, 230, -202, 82, -15, 1, 2, -30, 166, -426, 538, -342, 110, -17, 1, -2, 34, -222, 710, -1194, 1082, -534, 142, -19, 1, 2, -38, 286, -1098, 2330, -2814, 1958, -786, 178, -21, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

First column is (-1)^n*A104435(n). Row sums are 1,-2,-2,2,2,-2,-2,... Second column is A113142. Inverse of A113139.

LINKS

Table of n, a(n) for n=0..65.

EXAMPLE

Triangle begins

1;

-3, 1;

2, -5, 1;

-2, 10, -7, 1;

2, -14, 22, -9, 1;

-2, 18, -46, 38, -11, 1;

CROSSREFS

Sequence in context: A211025 A125704 A131127 * A134225 A136081 A083106

Adjacent sequences:  A113138 A113139 A113140 * A113142 A113143 A113144

KEYWORD

sign,tabl

AUTHOR

Paul Barry, Oct 15 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 October 20 12:47 EDT 2019. Contains 328257 sequences. (Running on oeis4.)