|
| |
|
|
A007744
|
|
Expansion of (1+6*x)/(1-4*x)^(7/2).
|
|
2
| |
|
|
1, 20, 210, 1680, 11550, 72072, 420420, 2333760, 12471030, 64664600, 327202876, 1622493600, 7909656300, 38003792400, 180324117000, 846321189120, 3934071152550, 18132120329400, 82937661506700
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
COMMENTS
| Fourth column in A104684. - Paul Barry (pbarry(AT)wit.ie), May 02 2005
|
|
|
LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..100
|
|
|
FORMULA
| a(n)=binomial(2n+3, n)binomial(n+3, 3); - Paul Barry, May 02 2005
|
|
|
PROG
| (MAGMA) [Binomial(2*n+3, n)*Binomial(n+3, 3): n in [0..20]]; // Vincenzo Librandi, Aug 20 2011
|
|
|
CROSSREFS
| Sequence in context: A010972 A126905 A022585 * A121204 A128823 A141790
Adjacent sequences: A007741 A007742 A007743 * A007745 A007746 A007747
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
