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A114763 a(n) = floor(sqrt(5)*10^n)^2. 10
4, 484, 49729, 4999696, 499969600, 49999643236, 4999995628489, 499999965341041, 49999999664599209, 4999999997764872529, 499999999955372691076, 49999999999562191467001, 4999999999996468370295001, 499999999999959886546350009, 49999999999999566363399000484 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Largest square < 5*10^(2n).

LINKS

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

EXAMPLE

a(1) = floor(sqrt(5)*10)^2 = 22^2 = 484.

MATHEMATICA

With[{c=Sqrt[5]}, (Floor[c 10^#])^2&/@Range[0, 30]]  (* Harvey P. Dale, Feb 27 2011 *)

PROG

(MAGMA) [Floor(5^(1/2)*10^n)^2: n in [0..150]]; // Vincenzo Librandi, Feb 05 2011

CROSSREFS

Cf. A114761, A114762.

Sequence in context: A058442 A221242 A075411 * A069500 A053953 A024058

Adjacent sequences:  A114760 A114761 A114762 * A114764 A114765 A114766

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Nov 17 2005

EXTENSIONS

More terms from Joshua Zucker, May 05 2006

STATUS

approved

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Last modified August 22 00:43 EDT 2019. Contains 326169 sequences. (Running on oeis4.)