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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; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture: the sequence is finite.

LINKS

Table of n, a(n) for n=1..4.

CROSSREFS

Cf. A068890.

Sequence in context: A243010 A343427 A209040 * A337245 A073351 A195797

Adjacent sequences:  A068888 A068889 A068890 * A068892 A068893 A068894

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Mar 20 2002

STATUS

approved

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Last modified August 11 15:10 EDT 2022. Contains 356066 sequences. (Running on oeis4.)