|
| |
|
|
A105250
|
|
C(n+3,n)*C(n+7,n).
|
|
0
| |
|
|
1, 32, 360, 2400, 11550, 44352, 144144, 411840, 1061775, 2516800, 5562128, 11583936, 22926540, 43411200, 79070400, 139163904, 237557133, 394558560, 639331000, 1013012000, 1572701130, 2396496960, 3589794000, 5293080000
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
EXAMPLE
| a(0) : if n=0 then C(0+3,0)*C(0+7,0)=C(3,0)*C(7,0)=1*1=1
a(10) : if n=10 then C(10+3,10)*C(10+7,10)=C(13,10)*(17,10)=286*19448==5562128
|
|
|
MATHEMATICA
| f[n_] := Binomial[n + 3, n]Binomial[n + 7, n]; Table[ f[n], {n, 0, 23}] (from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 20 2005)
|
|
|
CROSSREFS
| Cf. A062264.
Sequence in context: A006763 A158074 A200531 * A191901 A191489 A055752
Adjacent sequences: A105247 A105248 A105249 * A105251 A105252 A105253
|
|
|
KEYWORD
| easy,nonn
|
|
|
AUTHOR
| Zerinvary Lajos (zlaja(AT)freemail.hu), Apr 14 2005
|
|
|
EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 20 2005
|
| |
|
|
