id:A115541 - OEIS Search Results

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

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1020408163265306122449, 4081632653061224489796, 9183673469387755102041, 106678449690695619239994950132559020325716449943188991289, 123721752304002019946976391869713420022724403484408534276 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`5102040816326530612245_1020408163265306122449 = 7142857142857142857143^2.`
	CROSSREFS	`Cf. A102567, A106497, A115527 - A115556.` `Sequence in context: A104840 A095436 A046061 this_sequence A095438 A115503 A092118` `Adjacent sequences: A115538 A115539 A115540 this_sequence A115542 A115543 A115544`
	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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