OFFSET
0,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (7,-21,35,-35,21,-7,1).
FORMULA
O.g.f.: (15*x^3 + 91*x^2 + 53*x + 1)/(1 - x)^7.
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Petros Hadjicostas, Feb 15 2021
STATUS
approved