[seqfan] Re: A055099

[Richard Mathar]

http://list.seqfan.eu/pipermail/seqfan/2010-July/005384.html

vl>  Dear Seqfans
vl> Sequence A055099.
vl> Is correct the formula:
vl> a(n)=3*a(n-1)+2*a(n-2)   with a(0)=1, a(1)=4 ? 

Yes, that is indicated by the denominator of the generating function
of the rational type.