|
Search: id:A136302
|
|
|
| A136302 |
|
Transform of A000027 by the T_{1,1} transformation (see link). |
|
+0
4
|
|
| 2, 6, 15, 35, 81, 188, 437, 1016, 2362, 5491, 12765, 29675, 68986, 160373, 372822, 866706, 2014847, 4683951, 10888865, 25313540, 58846841, 136802308, 318026782, 739322571, 1718716457, 3995531011, 9288482690, 21593102505, 50197873146
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
Richard Choulet, Curtz-like transformation.
|
|
FORMULA
|
G.f.: f(z)=2+6*z+...=(2+z^2)/(1-3*z+2*z^2-z^3)
|
|
MAPLE
|
a := n -> (Matrix([6, 2, 1]). Matrix([[3, 1, 0], [ -2, 0, 1], [1, 0, 0]])^n)[1, 3]; seq (a(n), n=1..40); [From Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 14 2008]
|
|
CROSSREFS
|
Adjacent sequences: A136299 A136300 A136301 this_sequence A136303 A136304 A136305
Sequence in context: A076060 A126764 A090982 this_sequence A116404 A084860 A084798
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
Richard Choulet (richardchoulet(AT)yahoo.fr), Mar 22 2008
|
|
EXTENSIONS
|
More terms from Alois P. Heinz (heinz(AT)hs-heilbronn.de), Aug 14 2008
|
|
|
Search completed in 0.021 seconds
|
