OFFSET
0,1
LINKS
MATHEMATICA
RecurrenceTable[{a[1]==3, a[2]==9, a[n]==4*a[n-2]}, a, {n, 30}] (* or *) LinearRecurrence[ {0, 4}, {3, 9}, 30] (* Harvey P. Dale, Sep 20 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul Curtz, Apr 21 2008
EXTENSIONS
More terms from Harvey P. Dale, Sep 20 2018
STATUS
approved