A065736 Largest square <= 10^n.

9, 100, 961, 10000, 99856, 1000000, 9998244, 100000000, 999950884, 10000000000, 99999515529, 1000000000000, 9999995824729, 100000000000000, 999999961946176, 10000000000000000, 99999999989350756, 1000000000000000000, 9999999998935075600, 100000000000000000000, 999999999956753113201

Offset

1,1

Links

Harry J. Smith, Table of n, a(n) for n = 1..100

Formula

a(n) = A048760(A011557(n)) = A048760(10^n).

Mathematica

Table[Floor[Sqrt[10^n]]^2, {n, 20}] (* Harvey P. Dale, Dec 04 2014 *)

Prog

(PARI) a(n) = { sqrtint(10^n)^2 } \\ Harry J. Smith, Oct 28 2009

Crossrefs

Cf. A048760, A011557, A065730-A065741.

Sequence in context: A017018 A027769 A266098 * A092936 A056002 A060150

Adjacent sequences: A065733 A065734 A065735 * A065737 A065738 A065739

Keyword

easy,nonn

Author

Labos Elemer, Nov 15 2001

Status

approved