OFFSET
1,2
FORMULA
a(2n+1) = 4*a(2n); a(2n) = 4*a(2n-1)-a(n). - David Wasserman, May 22 2007
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jun 06 2004
EXTENSIONS
More terms from David Wasserman, May 22 2007
STATUS
approved