OFFSET
0,3
REFERENCES
D. Cvijovic, J Klinowski, An Application for the Chebyshev Polynomials, Mat. Vesnik 50 (1998) 105-110
LINKS
D. Cvijovic and J. Klinowski, An Application for the Chebyshev Polynomials, Mat. Vesnik 50 (1998) 105-110. [broken link]
Index entries for linear recurrences with constant coefficients, signature (-4,-5).
FORMULA
a(n) = Sum_{k=0..n} C(n, k)*(-2)^(n-k)*(-1)^floor(k/2)*(1+(1-(-1)^k)/2).
CROSSREFS
KEYWORD
easy,sign
AUTHOR
Paul Barry, Nov 21 2003
EXTENSIONS
Better name from Ralf Stephan, Jul 14 2013
STATUS
approved