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A067475
Smallest n-digit square starting with 5.
3
529, 5041, 50176, 501264, 5004169, 50013184, 500014321, 5000045521, 50000090449, 500000309449, 5000000100624, 50000002660624, 500000010062400, 5000000124641041, 50000000111812804, 500000001150395524
OFFSET
3,1
LINKS
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
Cf. A035072 (roots), A045788, A067479 (2..9).
Sequence in context: A274932 A082409 A066742 * A052074 A112079 A156573
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Feb 09 2002
EXTENSIONS
More terms from Rick L. Shepherd, Feb 18 2002
STATUS
approved