id:A068891 - OEIS Search Results

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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.

+0
2

1, 4, 125, 81 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Conjecture: the sequence is finite.`
	CROSSREFS	`Cf. A068890.` `Sequence in context: A064681 A005936 A090082 this_sequence A073351 A068894 A116944` `Adjacent sequences: A068888 A068889 A068890 this_sequence A068892 A068893 A068894`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 20 2002`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research