A115553 - OEIS

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A115553

Numbers n such that the concatenation of n with 9*n gives a square.

2041, 8164, 2366863905325444, 5325443786982249, 9467455621301776, 2040816326530612244897959183673469387755102041, 8163265306122448979591836734693877551020408164 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..7.`
	EXAMPLE	`2041_18369 = 14287^2.`
	CROSSREFS	`Cf. A102567, A106497, A115527 - A115556.` `Sequence in context: A015158 A015286 A172594 * A068264 A024021 A145590` `Adjacent sequences: A115550 A115551 A115552 * A115554 A115555 A115556`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta, Jan 25 2006`
	STATUS	`approved`

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Last modified June 19 05:40 EDT 2013. Contains 226390 sequences.