0,2

Associated to the knot 9_44 by the modified Chebyshev transform A(x)-> (1/(1+x^2)^2)A(x/(1+x^2)). See A099457 and A099458.

The Rolfsen Knot Table

a(n)=sum{k=0..floor(n/2), binomial(n-k, k)(-5)^k*4^(n-2k)}.

Sequence in context: A008070 A008096 A008209 this_sequence A008069 A047950 A008259

Adjacent sequences: A099453 A099454 A099455 this_sequence A099457 A099458 A099459

easy,sign

Paul Barry (pbarry(AT)wit.ie), Oct 16 2004