|
Search: id:A100520
|
|
|
| A100520 |
|
Numerator of Sum_{k=0..2n} (-1)^k/C(2n,k)^2. |
|
+0
3
|
|
| 1, 7, 137, 2341, 38629, 1257937, 50881679, 164078209, 18480100619, 1187779852639, 4086043585673, 46823724627623, 825926870076593, 8826243587390221, 6435629123661395137, 721766119107018403553, 5255377541226932317019, 19239461977895120106181, 2618947765106118753941303
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
EXAMPLE
|
1, 7/4, 137/72, 2341/1200, 38629/19600, 1257937/635040, 50881679/25613280, 164078209/82450368, 18480100619/9275666400, 1187779852639/595703908800, ... = A100520/A100521
|
|
CROSSREFS
|
Cf. A100521.
Adjacent sequences: A100517 A100518 A100519 this_sequence A100521 A100522 A100523
Sequence in context: A081793 A051504 A058881 this_sequence A009701 A120052 A142295
|
|
KEYWORD
|
nonn,frac
|
|
AUTHOR
|
njas, Nov 25 2004
|
|
EXTENSIONS
|
Definition corrected by Alexander Adamchuk, May 11 2007
|
|
|
Search completed in 0.002 seconds
|
