[seqfan] Re: %F A100638 (?!)

[franktaw at netscape.net]

This is a clear improvement.

Franklin T. Adams-Watters

-----Original Message-----
From: Maximilian Hasler <Maximilian.Hasler at martinique.univ-ag.fr>

The following sequence is related.
In fact its description could be simplified to:

First element of the 2x2 matrix [0,1;2,3] to the n-th power

Any advice for/against this simplification ?

Maximilian


A106434         The first entry of the vector v[n]=Mv[n-1], where M is 
the
2 x 2 matrix [[0,2],[1,3]] and v[1] is the column vector [0,1].
    0, 2, 6, 22, 78, 278, 990, 3526, 12558, 44726, 159294, 567334,
2020590, 7196438, 25630494,...

 CROSSREFS      Equals 2*A007482(n-2), for n>1.