|
Search: id:A132607
|
|
|
| A132607 |
|
Sequence allows us to find X values of the equation: X(X + 1) - 11*Y^2 = 0. |
|
+0
1
|
|
| 0, 99, 39600, 15760899, 6272798400, 2496558002499, 993623812196400, 395459780696164899, 157391999093261433600, 62641620179337354408099, 24931207439377173792990000, 9922557919251935832255612099
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
FORMULA
|
a(0)=0, a(1)=99 and a(n)=398*a(n-1) - a(n-2) + 198.
a(n)=-(1/2)+(1/4)*[199-60*sqrt(11)]^n+(1/4)*[199+60*sqrt(11)]^n, with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Oct 07 2008]
|
|
CROSSREFS
|
Cf. A007654.
Sequence in context: A093233 A046173 A098609 this_sequence A093211 A010114 A015068
Adjacent sequences: A132604 A132605 A132606 this_sequence A132608 A132609 A132610
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Mohamed Bouhamida (bhmd95(AT)yahoo.fr), Nov 14 2007
|
|
EXTENSIONS
|
More terms from Paolo P. Lava (ppl(AT)spl.at), Oct 07 2008
|
|
|
Search completed in 0.002 seconds
|
