|
Search: id:A157984
|
|
|
| A157984 |
|
Sequence: a(n)=48*3!*n!/(8!*19!) |
|
+0
1
|
|
| 3, 66, 1518, 36432, 910800, 23680800, 639381600, 17902684800, 519177859200, 15575335776000, 482835409056000, 15450733089792000, 509874191963136000, 17335722526746624000, 606750288436131840000, 21843010383700746240000
(list; graph; listen)
|
|
|
OFFSET
|
21,1
|
|
|
COMMENT
|
From calculations for a Witt design:
http://www.math.uic.edu/~ronan/Witt_design;
a(n)*8!/3! - 48*n!/19!
|
|
FORMULA
|
a(n)=3!*n!/(8!*19!)
|
|
MATHEMATICA
|
Flatten[Table[If[IntegerQ[48*3!*n!/(8!*19! )], 48*3!*n!/( 8!*19! ), {}], {n, 0, 48}]]
|
|
CROSSREFS
|
Sequence in context: A028567 A003359 A157543 this_sequence A157554 A165655 A157576
Adjacent sequences: A157981 A157982 A157983 this_sequence A157985 A157986 A157987
|
|
KEYWORD
|
nonn,uned
|
|
AUTHOR
|
Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Mar 10 2009
|
|
|
Search completed in 0.007 seconds
|
