|
Search: id:A115296
|
|
|
| A115296 |
|
Skew version of correlation triangle for constant sequence 1. |
|
+0
1
|
|
| 1, 0, 1, 0, 1, 1, 0, 0, 2, 1, 0, 0, 1, 2, 1, 0, 0, 0, 2, 2, 1, 0, 0, 0, 1, 3, 2, 1, 0, 0, 0, 0, 2, 3, 2, 1, 0, 0, 0, 0, 1, 3, 3, 2, 1, 0, 0, 0, 0, 0, 2, 4, 3, 2, 1, 0, 0, 0, 0, 0, 1, 3, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 2, 4, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 1, 3, 5, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 2, 4, 5, 4, 3, 2, 1
(list; table; graph; listen)
|
|
|
OFFSET
|
0,9
|
|
|
COMMENT
|
Row sums are A001399. Diagonal sums are A025795.
|
|
FORMULA
|
G.f.: 1/((1-x*y)*(1-x^2*y)*(1-x^3*y^2)); Number triangle T(n, k)=sum{j=0..k, [j<=n-k]*[j<=2k-n]}; T(n, k)=A003983(k, n-k).
|
|
EXAMPLE
|
Triangle begins
1;
0,1;
0,1,1;
0,0,2,1;
0,0,1,2,1;
0,0,0,2,2,1;
0,0,0,1,3,2,1;
0,0,0,0,2,3,2,1;
|
|
CROSSREFS
|
Sequence in context: A035468 A051777 A107628 this_sequence A059048 A124645 A029409
Adjacent sequences: A115293 A115294 A115295 this_sequence A115297 A115298 A115299
|
|
KEYWORD
|
easy,nonn,tabl
|
|
AUTHOR
|
Paul Barry (pbarry(AT)wit.ie), Jan 19 2006
|
|
|
Search completed in 0.002 seconds
|
