|
| |
|
|
A087727
|
|
Triangle read by rows: T(n,k) = (2 * (binom(n,k)) * (n + 2 * k + 3)!)/((k + 1)! * (k + 2)! * (n + 3)!).
|
|
1
| |
|
|
1, 1, 5, 1, 14, 42, 1, 28, 210, 462, 1, 48, 660, 3432, 6006, 1, 75, 1650, 15015, 60060, 87516, 1, 110, 3575, 50050, 340340, 1108536, 1385670, 1, 154, 7007, 140140, 1429428, 7759752, 21339318, 23371634, 1, 208, 12740, 346528, 4938024, 39504192
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,3
|
|
|
EXAMPLE
| 1; 1,5; 1,14,42; 1,28,210,462; ...
|
|
|
CROSSREFS
| Row sums give A087659.
Sequence in context: A104792 A120393 A094368 * A039807 A185263 A157395
Adjacent sequences: A087724 A087725 A087726 * A087728 A087729 A087730
|
|
|
KEYWORD
| nonn,tabl,easy
|
|
|
AUTHOR
| R. William Gosper (rwg(AT)tc.spnet.com), Sep 30 2003
|
|
|
EXTENSIONS
| More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 30 2003
|
| |
|
|
