|
Search: id:A129685
|
|
|
| A129685 |
|
Exponential Riordan array [1-x^2/2, x]. |
|
+0
2
|
|
| 1, 0, 1, -1, 0, 1, 0, -3, 0, 1, 0, 0, -6, 0, 1, 0, 0, 0, -10, 0, 1, 0, 0, 0, 0, -15, 0, 1, 0, 0, 0, 0, 0, -21, 0, 1, 0, 0, 0, 0, 0, 0, -28, 0, 1, 0, 0, 0, 0, 0, 0, 0, -36, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, -45, 0, 1
(list; table; graph; listen)
|
|
|
OFFSET
|
0,8
|
|
|
COMMENT
|
Inverse of A129684. Row sums are A080956.
|
|
EXAMPLE
|
Triangle begins
1,
0, 1,
-1, 0, 1,
0, -3, 0, 1,
0, 0, -6, 0, 1,
0, 0, 0, -10, 0, 1,
0, 0, 0, 0, -15, 0, 1,
0, 0, 0, 0, 0, -21, 0, 1,
0, 0, 0, 0, 0, 0, -28, 0, 1,
0, 0, 0, 0, 0, 0, 0, -36, 0, 1,
0, 0, 0, 0, 0, 0, 0, 0, -45, 0, 1
|
|
CROSSREFS
|
Sequence in context: A051830 A106216 A035676 this_sequence A140807 A091959 A046094
Adjacent sequences: A129682 A129683 A129684 this_sequence A129686 A129687 A129688
|
|
KEYWORD
|
easy,sign,tabl
|
|
AUTHOR
|
Paul Barry (pbarry(AT)wit.ie), Apr 28 2007
|
|
|
Search completed in 0.002 seconds
|
