A053912 - OEIS

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A053912

Numbers n such that n^2 contains only digits {1,7,8}.

1, 9, 109, 280859, 105769141, 279067891 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences`
	CROSSREFS	`Cf. A053913.` `Sequence in context: A128876 A199030 A105974 * A053894 A053904 A058607` `Adjacent sequences: A053909 A053910 A053911 * A053913 A053914 A053915`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.`

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Last modified February 13 09:48 EST 2012. Contains 205451 sequences.