A061460 Cubes which produce cubes when the leading digit is moved to the end.

1, 8, 512, 1000, 8000, 1000000, 8000000, 95443993, 1000000000, 8000000000, 1000000000000, 8000000000000, 1000000000000000, 8000000000000000, 1000000000000000000, 8000000000000000000, 1000000000000000000000, 8000000000000000000000, 1000000000000000000000000

Offset

1,2

Links

Table of n, a(n) for n=1..19.

Example

512 becomes 125 which is also a cube.

Maple

filter:= proc(n) local d, x, y;
  d:= ilog10(n);
  x:= floor(n/10^d);
  y:= n mod 10^d;
  type(surd(10*y+x, 3), integer);
end proc:
select(filter, [seq(i^3, i=1..10^5)]); # Robert Israel, Aug 05 2020

Crossrefs

Cf. A061459 (with squares instead of cubes).

Sequence in context: A228292 A082385 A236077 * A016935 A241756 A236220

Adjacent sequences: A061457 A061458 A061459 * A061461 A061462 A061463

Keyword

nonn,base

Author

Amarnath Murthy, May 04 2001

Extensions

More terms from Erich Friedman, May 08 2001

Further terms from Larry Reeves (larryr(AT)acm.org), May 25 2001

More terms from Sean A. Irvine, Feb 17 2023

Status

approved