id:A136989 - OEIS Search Results

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Numbers n such that n and the square of n use only the digits 1, 2, 4, 5 and 7.

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1, 2, 5, 11, 12, 15, 21, 112, 211, 415, 421, 521, 715, 2271, 5211, 21271, 21715, 27412, 75771, 125521, 145415, 724412, 742412, 1127715, 1214171, 1475515, 2115211, 2125421, 2127715, 2171271, 2177511, 2177515, 4152412, 4174412, 4215771, 7171271, 7247421, 11145511, 12142715, 12547715, 14575415, 41441715, 41445415, 41542421, 41742715 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Generated with DrScheme`
	LINKS	`Jonathan Wellons, Table of n, a(n) for n=1..284` `J. Wellons, Tables of Shared Digits`
	EXAMPLE	`524545271212521^2 = 275147741551417212121547175441`
	CROSSREFS	`Adjacent sequences: A136986 A136987 A136988 this_sequence A136990 A136991 A136992` `Sequence in context: A136990 A136968 A136991 this_sequence A136987 A062889 A065433`
	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.

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