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a(n) = floor(sqrt(8)*10^n)^2.
7

%I #12 Sep 08 2022 08:45:23

%S 4,784,79524,7997584,799984656,79999596964,7999999294329,

%T 799999986001441,79999999731514944,7999999995778911376,

%U 799999999973870935009,79999999999649835200676,7999999999998924645564516,799999999999949033098946521,79999999999999994478719195161

%N a(n) = floor(sqrt(8)*10^n)^2.

%C Largest square < 8*10^(2n).

%e a(1) = floor(sqrt(8)*10)^2 = 28^2 = 784.

%o (Magma) [Floor(8^(1/2)*10^n)^2: n in [0..150]]; // _Vincenzo Librandi_, Feb 04 2011

%Y Cf. A114761, A114762, A114763, A114764, A114765.

%K nonn

%O 0,1

%A _Amarnath Murthy_, Nov 17 2005

%E More terms from _Joshua Zucker_, May 05 2006