|
Search: id:A118589
|
|
|
| A118589 |
|
E.g.f.: A(x) = exp(x + x^2 + x^3). |
|
+0
3
|
|
| 1, 1, 3, 13, 49, 261, 1531, 9073, 63393, 465769, 3566611, 29998101, 262167313, 2394499693, 23249961099, 233439305401, 2439472944961, 26649502709073, 300078056044963, 3498896317045789, 42244252226263281, 524289088799352661
(list; graph; listen)
|
|
|
OFFSET
|
0,3
|
|
|
COMMENT
|
Equals row sums of triangle A118588.
|
|
MATHEMATICA
|
Range[0, 21]!*CoefficientList[ Series[ Exp[x*(1-x^3)/(1 - x)], {x, 0, 21}], x] - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 23 2007
|
|
PROGRAM
|
(PARI) {a(n)=n!*polcoeff(exp(x+x^2+x^3 +x*O(x^n)), n, x)}
|
|
CROSSREFS
|
Cf. A118588 (triangle), A119013 (eigenvector).
Sequence in context: A048482 A094978 A045908 this_sequence A113237 A116427 A008827
Adjacent sequences: A118586 A118587 A118588 this_sequence A118590 A118591 A118592
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Paul D. Hanna (pauldhanna(AT)juno.com), May 08 2006
|
|
|
Search completed in 0.002 seconds
|
