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Table of n, a(n) for n=1..20.
a(n) = +9*a(n-1) +11*a(n-2) -10*a(n-3). [Joerg Arndt, May 14 2011]
a(n)=10*a(n-1)+F(n) for n=odd and a(n)=10*a(n-1)-F(n) for n=even, with a(0)= 0 and F(n) is the n-th Fibonacci number
Sequence in context: A022505 A225162 A128384 * A007403 A015587 A024117
Adjacent sequences: A164910 A164911 A164912 * A164914 A164915 A164916
Mark Dols (markdols99(AT)yahoo.com), Aug 31 2009