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A061491 a(1) = 1, a(n) = least number such that the concatenation a(n)a(n-1)...a(1) is a cube. 1
1, 133, 100330363, 100000000300330000300660363, 100000000000000000000000000300000000300330000000000000300000000600660000300660 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

EXAMPLE

a(1) = 1, a(2) = 133, a(2)a(1) = 1331 = 11^3.

CROSSREFS

Cf. A061359, A061361, A061363.

Sequence in context: A055579 A191715 A208626 * A274132 A252133 A255795

Adjacent sequences:  A061488 A061489 A061490 * A061492 A061493 A061494

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, May 06 2001

EXTENSIONS

More terms from Ulrich Schimke (ulrschimke(AT)aol.com), Nov 06 2001

STATUS

approved

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Last modified October 15 20:03 EDT 2021. Contains 348034 sequences. (Running on oeis4.)