id:A115539 - OEIS Search Results

Search: id:A115539

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Numbers n such that the concatenation of n with 5*n gives a square.

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2040816326530612245, 8163265306122448980, 18367346938775510205, 265008112493239588967009194159005, 346133044889129259058950784207680, 438074634937804218496484586262845, 540832882639264467279610600324500 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`2040816326530612245_10204081632653061225 = 14285714285714285715^2.`
	CROSSREFS	`Cf. A102567, A106497, A115527 - A115556.` `Sequence in context: A113741 A115529 A113740 this_sequence A080129 A104839 A003812` `Adjacent sequences: A115536 A115537 A115538 this_sequence A115540 A115541 A115542`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 25 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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