

A061492


a(1) = 8, a(n) = least number such that the concatenation a(n)a(n1)...a(1) is a cube.


0




OFFSET

1,1


LINKS

Table of n, a(n) for n=1..5.


EXAMPLE

a(1) = 8, a(2) = 172, a(2)a(1) = 1728 = 12^3.


CROSSREFS

Cf. A061359, A061361, A061363, A061491.
Sequence in context: A333460 A221060 A303285 * A263461 A215124 A138783
Adjacent sequences: A061489 A061490 A061491 * A061493 A061494 A061495


KEYWORD

base,nonn


AUTHOR

Amarnath Murthy, May 06 2001


EXTENSIONS

Corrected and extended by Ulrich Schimke (ulrschimke(AT)aol.com), Nov 06 2001. Next element has 135 digits.


STATUS

approved



