A114766 a(n) = floor(sqrt(8)*10^n)^2.

4, 784, 79524, 7997584, 799984656, 79999596964, 7999999294329, 799999986001441, 79999999731514944, 7999999995778911376, 799999999973870935009, 79999999999649835200676, 7999999999998924645564516, 799999999999949033098946521, 79999999999999994478719195161

Offset

0,1

Comments

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

Links

Table of n, a(n) for n=0..14.

Example

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

Prog

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

Crossrefs

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

Sequence in context: A068112 A007725 A102195 * A239623 A202685 A172893

Adjacent sequences: A114763 A114764 A114765 * A114767 A114768 A114769

Keyword

nonn

Author

Amarnath Murthy, Nov 17 2005

Extensions

More terms from Joshua Zucker, May 05 2006

Status

approved