OFFSET
0,1
COMMENTS
Arises in studying the equation x^3 - 7*y^2 = 1.
REFERENCES
P.-F. Teilhet, Query 2228, L'Intermédiaire des Mathématiciens, 11 (1904), 44-45.
LINKS
Index entries for linear recurrences with constant coefficients, signature (255,-255,1).
FORMULA
From Chai Wah Wu, Mar 07 2022: (Start)
a(n) = 255*a(n-1) - 255*a(n-2) + a(n-3) for n > 3.
G.f.: (4*x^2 - 365*x - 17)/((x - 1)*(x^2 - 254*x + 1)). (End)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Mar 06 2022
STATUS
approved