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A118880 Cube numbers equal to sum of decimal digits of n. 2
0, 1, 8, 27, 64, 125, 216, 343, 512, 729, 1, 8, 27, 64, 125, 216, 343, 512, 729, 1000, 8, 27, 64, 125, 216, 343, 512, 729, 1000, 1331, 27, 64, 125, 216, 343, 512, 729, 1000, 1331, 1728, 64, 125, 216, 343, 512, 729, 1000, 1331, 1728, 2197, 125, 216, 343, 512 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..54.

FORMULA

a(n) = (A007953(n))^3. [From R. J. Mathar, Apr 22 2010]

EXAMPLE

Trajectories of x->a(x), see A182128:

1 ->1 ->1 ->1 ->1 ->1 ->1 ->1 ->1 ->..

2 ->8 ->512 ->512 ->512 ->512 ->512 ->512 ->512 ->..

3 ->27 ->729 ->5832 ->5832 ->5832 ->5832 ->5832 ->5832 ->..

4 ->64 ->1000 ->1 ->1 ->1 ->1 ->1 ->1 ->..

5 ->125 ->512 ->512 ->512 ->512 ->512 ->512 ->512 ->..

6 ->216 ->729 ->5832 ->5832 ->5832 ->5832 ->5832 ->5832 ->..

7 ->343 ->1000 ->1 ->1 ->1 ->1 ->1 ->1 ->..

8 ->512 ->512 ->512 ->512 ->512 ->512 ->512 ->512 ->..

9 ->729 ->5832 ->5832 ->5832 ->5832 ->5832 ->5832 ->5832 ->..

10 ->1 ->1 ->1 ->1 ->1 ->1 ->1 ->1 ->..

11 ->8 ->512 ->512 ->512 ->512 ->512 ->512 ->512 ->..

12 ->27 ->729 ->5832 ->5832 ->5832 ->5832 ->5832 ->5832 ->..

13 ->64 ->1000 ->1 ->1 ->1 ->1 ->1 ->1 ->..

14 ->125 ->512 ->512 ->512 ->512 ->512 ->512 ->512 ->..

- R. J. Mathar, Jul 08 2012

CROSSREFS

Sequence in context: A254521 A055012 A069939 * A048390 A000578 A062292

Adjacent sequences:  A118877 A118878 A118879 * A118881 A118882 A118883

KEYWORD

base,easy,nonn

AUTHOR

Giovanni Teofilatto, May 25 2006

STATUS

approved

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Last modified November 14 03:52 EST 2018. Contains 317159 sequences. (Running on oeis4.)