A137019 - OEIS

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A137019

Numbers n such that n and the square of n use only the digits 1, 2, 7 and 9.

1, 11, 27, 2777 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`Generated with DrScheme`
	LINKS	`J. Wellons, Tables of Shared Digits`
	EXAMPLE	`2777^2 = 7711729`
	CROSSREFS	`Sequence in context: A106839 A044072 A044453 * A122929 A030756 A065006` `Adjacent sequences: A137016 A137017 A137018 * A137020 A137021 A137022`
	KEYWORD	`base,nonn`
	AUTHOR	`Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008`

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Last modified February 16 14:07 EST 2012. Contains 205930 sequences.