A065736 - OEIS

%I #17 Dec 13 2024 12:38:36

%S 9,100,961,10000,99856,1000000,9998244,100000000,999950884,

%T 10000000000,99999515529,1000000000000,9999995824729,100000000000000,

%U 999999961946176,10000000000000000,99999999989350756,1000000000000000000,9999999998935075600,100000000000000000000,999999999956753113201

%N Largest square <= 10^n.

%H Harry J. Smith, <a href="/A065736/b065736.txt">Table of n, a(n) for n = 1..100</a>

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

%t Table[Floor[Sqrt[10^n]]^2,{n,20}] (* _Harvey P. Dale_, Dec 04 2014 *)

%o (PARI) a(n) = { sqrtint(10^n)^2 } \\ _Harry J. Smith_, Oct 28 2009

%Y Cf. A048760, A011557, A065730-A065741.

%K easy,nonn

%O 1,1

%A _Labos Elemer_, Nov 15 2001