id:A137075 - OEIS Search Results

Search: id:A137075

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Numbers n such that n and the square of n use only the digits 2, 3, 4, 7 and 9.

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2, 3, 7, 27, 223, 473, 4943, 49777, 222327, 273393, 477277, 499423, 499473, 973393, 2733943, 4932923, 4993443, 4994777, 4997927, 49342927, 49924277, 49972927, 49993443, 49994223, 49994777, 97339223, 492942927, 494342927, 497332327, 497794473, 497993923, 499293443, 499932923, 499947327, 499972927, 499979277, 499979327 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Generated with DrScheme`
	LINKS	`Jonathan Wellons, Table of n, a(n) for n=1..200` `J. Wellons, Tables of Shared Digits`
	EXAMPLE	`497242372972927^2 = 247249977479747443472274947329`
	CROSSREFS	`Adjacent sequences: A137072 A137073 A137074 this_sequence A137076 A137077 A137078` `Sequence in context: A107881 A128001 A052877 this_sequence A060412 A062573 A019435`
	KEYWORD	`base,nonn`
	AUTHOR	`Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008`

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Last modified October 12 14:39 EDT 2008. Contains 144830 sequences.

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