id:A137018 - OEIS Search Results

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Numbers n such that n and the square of n use only the digits 1, 2, 7, 8 and 9.

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1, 9, 11, 17, 27, 89, 91, 911, 989, 2777, 2827, 2877, 9911, 27877, 28127, 88189, 88277, 88877, 98989, 99891, 172891, 279127, 282827, 287891, 988877, 2879189, 9989891, 9998891, 29711811, 87919777, 88978189, 99899891, 112818127, 277817777, 277871911, 277987917, 278781777, 279781911, 287919777, 888812811, 1727112877, 2778718989 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Generated with DrScheme`
	LINKS	`Jonathan Wellons, Table of n, a(n) for n=1..158` `J. Wellons, Tables of Shared Digits`
	EXAMPLE	`278787181898989^2 = 77722292791179979928199222121`
	CROSSREFS	`Adjacent sequences: A137015 A137016 A137017 this_sequence A137019 A137020 A137021` `Sequence in context: A108113 A111391 A077788 this_sequence A090771 A046259 A074345`
	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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