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A061435
a(n) is the largest n-digit cube.
5
8, 64, 729, 9261, 97336, 970299, 9938375, 99897344, 997002999, 9993948264, 99961946721, 999700029999, 9999516957184, 99994258523375, 999970000299999, 9999934692543307, 99999429057832312, 999997000002999999
OFFSET
1,1
LINKS
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
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