OFFSET
0,2
COMMENTS
The e.g.f. given below is Sum_{m=0..6} A075513(7,m)exp(6*(m+1)*x)/6!.
FORMULA
a(n) = Sum_{m=0..6} A075513(7, m)*((m+1)*6)^n/6!.
G.f.: 1/Product_{k=1..7} (1 - 6*k*x).
E.g.f.: (d^7/dx^7)(((exp(6*x)-1)/6)^7)/7! = (exp(6*x) - 384*exp(12*x) + 10935*exp(18*x) - 81920*exp(24*x) + 234375*exp(30x) - 279936*exp(36*x) + 117649*exp(42*x))/6!.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Oct 02 2002
STATUS
approved