|
| |
| |
|
|
|
8, 170, 494, 980, 1628, 2438, 3410, 4544, 5840, 7298, 8918, 10700, 12644, 14750, 17018, 19448, 22040, 24794, 27710, 30788, 34028, 37430, 40994, 44720, 48608, 52658, 56870, 61244, 65780, 70478, 75338, 80360, 85544, 90890, 96398, 102068
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,1
|
|
|
FORMULA
| a(n)=162*n+a(n-1) with a(0)=8.[From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Nov 12 2010]
a(0)=8, a(1)=170, a(2)=494, a(n)=3*a(n-1)-3*a(n-2)+a(n-3) [From Harvey P. Dale, Aug 20 2011]
G.f.: -((2*(x*(4*x+73)+4))/(x-1)^3) [From Harvey P. Dale, Aug 20 2011]
|
|
|
MATHEMATICA
| f[n_]:=Module[{n9=9n}, (n9+1)(n9+8)]; Array[f, 40, 0] (* or *) LinearRecurrence[ {3, -3, 1}, {8, 170, 494}, 50] (* From Harvey P. Dale, Aug 20 2011 *)
|
|
|
CROSSREFS
| Sequence in context: A084941 A139564 A181198 * A096486 A061492 A138783
Adjacent sequences: A001531 A001532 A001533 * A001535 A001536 A001537
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
