|
Search: id:A006077
|
|
|
| A006077 |
|
(n+1)^2*a(n+1)=(9n^2+9n+3)a(n)-27*n^2*a(n-1).
(Formerly M2775)
|
|
+0
2
|
|
| 1, 3, 9, 21, 9, -297, -2421, -12933, -52407, -145293, -35091, 2954097, 25228971, 142080669, 602217261, 1724917221, 283305033, -38852066421, -337425235479, -1938308236731, -8364863310291, -24286959061533, -3011589296289
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
Comment from Matthijs Coster, Apr 28, 2004: This is the Taylor expansion of a special point on a curve described by Beauville.
|
|
REFERENCES
|
Arnaud Beauville, Les familles stables de courbes sur P_1 admettant quatre fibres singulieres, Comptes Rendus, Academie Science Paris, no. 294, May 24 1982.
Matthijs Coster, Over 6 families van krommen [On 6 families of curves], Master's Thesis (unpublished), Aug 26 1983.
|
|
CROSSREFS
|
Sequence in context: A026566 A078841 A128127 this_sequence A109612 A032668 A050839
Adjacent sequences: A006074 A006075 A006076 this_sequence A006078 A006079 A006080
|
|
KEYWORD
|
sign
|
|
AUTHOR
|
njas
|
|
EXTENSIONS
|
More terms from Kok Seng Chua (chuaks(AT)ihpc.nus.edu.sg), Jun 20 2000
|
|
|
Search completed in 0.002 seconds
|
