OFFSET
0,1
COMMENTS
Pisot sequence T(6,8).
Trivial case of a Pisot sequence satisfying a simple linear recurrence. Here, since round((2n+2)^2/(2n)^2) = 2n + round((n+1)/n^2) = 2n for n>2, a(n) is even and a(n) = a(n-1) + 2. - Ralf Stephan, Sep 03 2013
LINKS
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (2, -1).
FORMULA
a(n) = 2a(n-1) - a(n-2).
MATHEMATICA
2*Range[0, 70]+6 (* or *) Range[6, 138, 2] (* Harvey P. Dale, Apr 24 2017 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
Better name from Ralf Stephan, Sep 03 2013
STATUS
approved