|
Search: id:A125694
|
|
|
| A125694 |
|
Riordan array ((1+3x-sqrt(1+2x+9x^2))/(2x),(1+3x-sqrt(1+2x+9x^2))/2). |
|
+0
3
|
|
| 1, -2, 1, 2, -4, 1, 2, 8, -6, 1, -10, -4, 18, -8, 1, 6, -24, -26, 32, -10, 1, 42, 60, -18, -72, 50, -12, 1, -102, 24, 162, 48, -150, 72, -14, 1, -82, -388, -214, 248, 230, -268, 98, -16, 1, 782, 536, -546, -800, 158, 600
(list; table; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
First column is A125695. Row sums are A091593. Inverse of A125693.
|
|
EXAMPLE
|
Triangle begins
1,
-2, 1,
2, -4, 1,
2, 8, -6, 1,
-10, -4, 18, -8, 1,
6, -24, -26, 32, -10, 1,
42, 60, -18, -72, 50, -12, 1
|
|
CROSSREFS
|
Sequence in context: A129994 A080246 A113413 this_sequence A136678 A110162 A087704
Adjacent sequences: A125691 A125692 A125693 this_sequence A125695 A125696 A125697
|
|
KEYWORD
|
easy,sign,tabl
|
|
AUTHOR
|
Paul Barry (pbarry(AT)wit.ie), Nov 30 2006
|
|
|
Search completed in 0.002 seconds
|
