A061458 Cubes whose digit reversal is also a cube.

0, 1, 8, 343, 1000, 1331, 8000, 343000, 1000000, 1030301, 1331000, 1367631, 8000000, 343000000, 1000000000, 1003003001, 1030301000, 1033364331, 1331000000, 1334633301, 1367631000, 8000000000, 10662526601, 343000000000

Offset

0,3

Links

Harry J. Smith, Table of n, a(n) for n = 0..63

Example

1000 and 0001 (= 1) are both cubes.

Prog

(PARI) { n=-1; for (m=0, 220100, x=m^3; r=0; while (x>0, d=x-10*(x\10); x\=10; r=r*10 + d); if (r<2, t=0, f=factor(r)~; for(i=1, length(f), if (t=f[2, i]%3, break))); if (t==0, write("b061458.txt", n++, " ", m^3)) ) } \\ Harry J. Smith, Jul 23 2009

Crossrefs

Sequence in context: A071306 A214511 A117082 * A135067 A002781 A016875

Adjacent sequences: A061455 A061456 A061457 * A061459 A061460 A061461

Keyword

nonn,base

Author

Amarnath Murthy, May 03 2001

Extensions

More terms from Larry Reeves (larryr(AT)acm.org), May 17 2001

Status

approved