id:A136996 - OEIS Search Results

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Numbers n such that n and the square of n use only the digits 1, 2, 4 and 7.

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1, 2, 11, 12, 21, 421, 1214171, 2777177421 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Generated with DrScheme`
	LINKS	`J. Wellons, Tables of Shared Digits`
	EXAMPLE	`2777177421^2 = 7712714427712211241`
	CROSSREFS	`Adjacent sequences: A136993 A136994 A136995 this_sequence A136997 A136998 A136999` `Sequence in context: A136970 A136967 A137001 this_sequence A113720 A034118 A140148`
	KEYWORD	`base,nonn`
	AUTHOR	`Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008`

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Last modified January 7 17:35 EST 2009. Contains 152824 sequences.