OFFSET
3,1
LINKS
Robert Israel, Table of n, a(n) for n = 3..998
FORMULA
a(n) = ceiling(sqrt(5*10^(n-1)))^2, n>2. - Rick L. Shepherd, Feb 18 2002
MAPLE
seq(ceil(sqrt(5*10^(d-1)))^2, d=3..30); # Robert Israel, Sep 30 2016
MATHEMATICA
Table[Ceiling[Sqrt[5*10^n]]^2, {n, 2, 20}] (* Harvey P. Dale, Aug 23 2014 *)
PROG
(PARI) for(n=3, 22, a=ceil(sqrt(5*10^(n-1)))^2; print(a))
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Feb 09 2002
EXTENSIONS
More terms from Rick L. Shepherd, Feb 18 2002
STATUS
approved