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A077503 Smallest n-digit square beginning with n. 1
1, 25, 324, 4096, 50176, 600625, 7001316, 80013025, 900000000, 1000014129, 11000024161, 120000580921, 1300001310976, 14000004588964, 150000007007601, 1600000000000000, 17000000233634401, 180000000244436761 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

FORMULA

a(n) = {ceiling[{n*10^d}^(1/2)]}^2. where d = n-digit(n), digit(n) = number of digits in n. - Ray Chandler, Aug 11 2003

CROSSREFS

Cf. A087095.

Sequence in context: A161932 A162367 A263404 * A262054 A020275 A020233

Adjacent sequences:  A077500 A077501 A077502 * A077504 A077505 A077506

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Nov 08 2002

EXTENSIONS

More terms from Ray Chandler, Aug 11 2003

STATUS

approved

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Last modified August 22 21:43 EDT 2019. Contains 326209 sequences. (Running on oeis4.)