OFFSET
0,3
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..1000
Index entries for linear recurrences with constant coefficients, signature (9,-7).
FORMULA
G.f.: x/(1-9*x+7*x^2). - Philippe Deléham, Oct 12 2011
E.g.f.: (2/sqrt(53))*exp(9*x/2)*sinh(sqrt(53)*x/2). - G. C. Greubel, Aug 26 2022
MATHEMATICA
LinearRecurrence[{9, -7}, {0, 1}, 50]
PROG
(Magma) [Round(7^((n-1)/2)*Evaluate(ChebyshevU(n), 9/(2*Sqrt(7)))): n in [0..30]]; // G. C. Greubel, Aug 26 2022
(SageMath)
A190984 = BinaryRecurrenceSequence(9, -7, 0, 1)
[A190984(n) for n in (0..30)] # G. C. Greubel, Aug 26 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, May 24 2011
STATUS
approved