OFFSET
0,5
LINKS
N. J. A. Sloane and Chai Wah Wu, Table of n, a(n) for n = 0..10000 n = 0..1000 from N. J. A. Sloane.
MAPLE
Digits:=50: f:=n->round(evalf(n^2*cos(sqrt(n)))); [seq(f(n), n=0..120)];
PROG
(Python)
from sympy import cos, sqrt
def A274090(n):
return int((n**2*cos(sqrt(n))).round()) # Chai Wah Wu, Jun 11 2016
CROSSREFS
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Jun 10 2016
STATUS
approved