login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A176741
Fibonacci-Chebyshev sequence depending on rabbit sequence A005614.
0
0, 1, 1, 2, 1, 3, 2, 5, 7, 2, 9, 11, 2, 13, 11, 24, 35, 11, 46, 35, 81, 116, 35, 151, 186, 35, 221, 186, 407, 593, 186, 779, 965, 186, 1151, 965, 2116, 3081, 965, 4046, 3081, 7127, 10208, 3081, 13289, 16370, 3081, 19451, 16370, 35821, 52191, 16370, 68561, 52191, 120752
OFFSET
0,4
COMMENTS
See Viswanath sequences (A078416 and links) for random sequences of this type.
FORMULA
a(n) = a(n-1) + (-1)^(h(n)+1)*a(n-2), with h(n):=A005614(n) (rabbit sequence or Fibonacci word), inputs a(0)=0, a(1)=1.
CROSSREFS
Cf. A053602 (alternating signs).
Sequence in context: A062951 A263150 A145794 * A266138 A014000 A339612
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Oct 15 2010
STATUS
approved