OFFSET
0,1
REFERENCES
Clifford A. Pickover, A Passion for Mathematics, Wiley, 2005; see p. 62 or 63.
LINKS
MATHEMATICA
Table[13+12n-n^2, {n, 0, 70}] (* or *) LinearRecurrence[{3, -3, 1}, {13, 24, 33}, 70] (* Harvey P. Dale, Aug 31 2018 *)
PROG
(PARI) a(n)=13+12*n-n^2 \\ Charles R Greathouse IV, Jun 17 2017
CROSSREFS
KEYWORD
sign,easy
AUTHOR
N. J. A. Sloane, Apr 20 2008
STATUS
approved