|
Search: id:A127244
|
|
|
| A127244 |
|
A Thue-Morse signed falling factorial triangle. |
|
+0
5
|
|
| 1, -1, 1, 1, -1, 1, 0, 0, 0, 1, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 0, 1, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
(list; table; graph; listen)
|
|
|
OFFSET
|
0,1
|
|
|
COMMENT
|
Inverse of A127243. Row sums are A127245.
|
|
FORMULA
|
Number triangle T(n,k)=(-1)^(n-k)*Product{j=0..n-k-1,A010060(n-j)}*[k<=n]
|
|
EXAMPLE
|
Triangle begins
1,
-1, 1,
1, -1, 1,
0, 0, 0, 1,
0, 0, 0, -1, 1,
0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, -1, 1,
0, 0, 0, 0, 0, 0, 1, -1, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
|
|
CROSSREFS
|
Sequence in context: A082551 A127507 A127247 this_sequence A111940 A129572 A070950
Adjacent sequences: A127241 A127242 A127243 this_sequence A127245 A127246 A127247
|
|
KEYWORD
|
easy,tabl,sign
|
|
AUTHOR
|
Paul Barry (pbarry(AT)wit.ie), Jan 10 2007
|
|
|
Search completed in 0.002 seconds
|
