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A114765 a(n) = floor(sqrt(7)*10^n)^2. 8
4, 676, 69696, 6996025, 699972849, 69999930625, 6999998354001, 699999994145169, 69999999943667161, 6999999999658218721, 699999999965821872100, 69999999999757088783236 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Largest square < 7*10^(2n).

LINKS

Table of n, a(n) for n=0..11.

EXAMPLE

a(1) = floor(sqrt(7)*10)^2 = 26^2 = 676.

MATHEMATICA

$MaxExtraPrecision := 200; Table[Floor[7^(1/2)*10^n]^2, {n, 0, 20}] (* Stefan Steinerberger, Jan 26 2006 *)

PROG

(MAGMA) [Floor(7^(1/2)*10^n)^2: n in [0..150]]; // Vincenzo Librandi, Feb 05 2011

CROSSREFS

Cf. A114761, A114762, A114763, A114764.

Sequence in context: A046348 A183150 A202368 * A307920 A159618 A219012

Adjacent sequences:  A114762 A114763 A114764 * A114766 A114767 A114768

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Nov 17 2005

EXTENSIONS

More terms from Stefan Steinerberger, Jan 26 2006

STATUS

approved

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Last modified August 18 08:57 EDT 2019. Contains 326077 sequences. (Running on oeis4.)