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A068891 a(1) = 1; a(n) = smallest nontrivial n-th power with property that digits alternate in parity individually as well as in concatenation with previous terms. 1
1, 4, 125, 81 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Conjecture: the sequence is finite.

CROSSREFS

Cf. A068890.

Sequence in context: A197779 A197610 A090082 * A073351 A195797 A068894

Adjacent sequences:  A068888 A068889 A068890 * A068892 A068893 A068894

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 20 2002

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.