A115544 - OEIS

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A115544

Numbers k such that k^2 is the concatenation of two numbers m and 6*m.

0

4, 142857142857142857142857142857142858, 285714285714285714285714285714285716, 142857142857142857142857142857142857142857142857142857142857142857142857142858

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..4.

EXAMPLE

4^2 = 1_6.

CROSSREFS

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A266200 A066546 A132653 * A164797 A336587 A336586

Adjacent sequences: A115541 A115542 A115543 * A115545 A115546 A115547

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 25 2006

STATUS

approved