id:A068890 - OEIS Search Results

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a(1) = 1; a(n) = smallest nontrivial n-th power with property that digits alternate in parity.

+0
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1, 4, 8, 16, 32, 729, 2187, 256 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Conjecture: the sequence is finite.`
	CROSSREFS	`Cf. A030152, A068891.` `Sequence in context: A089890 A049932 A020161 this_sequence A073856 A019458 A040014` `Adjacent sequences: A068887 A068888 A068889 this_sequence A068891 A068892 A068893`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 20 2002`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.