OFFSET
0,2
COMMENTS
The fifth column gives [1,6,60,600,6000,60000,...].
LINKS
FORMULA
a(n)= A067410(n+3, 3). a(n)= 5*8^(n-1), n>=1, a(0)=1.
G.f.: (1-3*x)/(1-8*x).
E.g.f.: (5*exp(8*x)+3)/8 = exp(4*x)*(cosh(4*x)+sinh(4*x)/4) - Paul Barry, Nov 20 2003
MATHEMATICA
Join[{1}, NestList[8#&, 5, 20]] (* or *) CoefficientList[Series[ (1-3x)/ (1-8x), {x, 0, 20}], x] (* Harvey P. Dale, May 14 2011 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Jan 25 2002
STATUS
approved