OFFSET
1,1
COMMENTS
LINKS
B. Berselli, Table of n, a(n) for n = 1..10000. [From Bruno Berselli, Oct 20 2010]
Index entries for linear recurrences with constant coefficients, signature (0,4,0,-6,0,4,0,-1).
FORMULA
EXAMPLE
For n=5, 5+5^2=30 and n=6 6+6^3=222.
MATHEMATICA
If[OddQ[ # ], #+#^2, #+#^3]&/@Range[50] (* Harvey P. Dale, Nov 03 2010 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Dinesh Panchamia (dgpanchamia(AT)gmail.com), Oct 19 2010
EXTENSIONS
Formulas and more terms from R. J. Mathar and Bruno Berselli, Oct 19 2010
STATUS
approved