OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
MATHEMATICA
Ceiling[Range[0, 60]Sqrt[3]] (* Harvey P. Dale, May 06 2012 *)
PROG
(Magma) [Ceiling(n*Sqrt(3)): n in [0..60]]
(Python)
from math import isqrt
def A198081(n): return 1+isqrt(3*n*n) if n else 0 # Chai Wah Wu, Jul 29 2022
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Oct 22 2011
STATUS
approved