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A061435

a(n) is the largest n-digit cube.

8, 64, 729, 9261, 97336, 970299, 9938375, 99897344, 997002999, 9993948264, 99961946721, 999700029999, 9999516957184, 99994258523375, 999970000299999, 9999934692543307, 99999429057832312, 999997000002999999

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

FORMULA

a(n) = (ceiling(10^(n/3)) - 1)^3. - Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Mar 30 2003

EXAMPLE

a(4) = 9261 = 21^3 has 4 digits while 22^3 = 10648 has 5 digits.

MAPLE

A061435 := n->(ceil(10^(n/3))-1)^3;

MATHEMATICA

Table[Floor[Surd[10^n-1, 3]]^3, {n, 20}] (* Harvey P. Dale, Apr 02 2020 *)

CROSSREFS

Cf. A061432, A061433, A061434.

Sequence in context: A238724 A318640 A088038 * A133054 A371988 A098560

Adjacent sequences: A061432 A061433 A061434 * A061436 A061437 A061438

KEYWORD

nonn,base,easy

AUTHOR

Amarnath Murthy, May 03 2001

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), May 16 2001

STATUS

approved

URL: https://oeis.org/A061435

⇱ A061435 - OEIS