A067475 Smallest n-digit square starting with 5.
529, 5041, 50176, 501264, 5004169, 50013184, 500014321, 5000045521, 50000090449, 500000309449, 5000000100624, 50000002660624, 500000010062400, 5000000124641041, 50000000111812804, 500000001150395524
Offset: 3
Links
- Robert Israel, Table of n, a(n) for n = 3..998
Programs
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Maple
seq(ceil(sqrt(5*10^(d-1)))^2, d=3..30); # Robert Israel, Sep 30 2016
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Mathematica
Table[Ceiling[Sqrt[5*10^n]]^2,{n,2,20}] (* Harvey P. Dale, Aug 23 2014 *) -
PARI
for(n=3,22,a=ceil(sqrt(5*10^(n-1)))^2; print(a))
Formula
a(n) = ceiling(sqrt(5*10^(n-1)))^2, n>2. - Rick L. Shepherd, Feb 18 2002
Extensions
More terms from Rick L. Shepherd, Feb 18 2002