0,2

The g.f. is a transformation of the g.f. 1/(1-3x+3x^3) of A090400 under the mapping G(x)->(1/(1+x^2)^3)G(x/(1+x^2)). The denominator of the g.f. is a parameterisation of the Alexander polynomial for the knot 8_2.

G.f.: 1/(1-3x+3x^2-3x^3+3x^4-3x^5+x^6).

Cf. A099845.

Sequence in context: A003945 A007283 A049942 this_sequence A084717 A102254 A007239

Adjacent sequences: A099841 A099842 A099843 this_sequence A099845 A099846 A099847

easy,nonn

Paul Barry (pbarry(AT)wit.ie), Oct 27 2004