|
Search: id:A014929
|
|
|
| A014929 |
|
a(1)=1, a(n)=n*14^(n-1)+a(n-1). |
|
+0
2
|
|
| 1, 29, 617, 11593, 203673, 3430617, 56137369, 899445401, 14181546905, 220792014745, 3402593219481, 51997375255449, 789018236134297, 11901025061692313, 178581127445062553, 2667670656370058137
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
FORMULA
|
a(n) = [1+(13n-1)*14^n]/169. O.g.f.: x/[(14x-1)^2*(1-x)]. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 05 2008
|
|
MAPLE
|
A014929 := proc(n) (1+(13*n-1)*14^n)/169 ; end: seq(A014929(n), n=1..10) ; - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 05 2008
|
|
CROSSREFS
|
Sequence in context: A103723 A142521 A032630 this_sequence A006136 A072080 A063044
Adjacent sequences: A014926 A014927 A014928 this_sequence A014930 A014931 A014932
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
Olivier Gerard (ogerard(AT)ext.jussieu.fr)
|
|
|
Search completed in 0.006 seconds
|
