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A115556 Numbers n such that the square of n is the concatenation of two numbers m and 9*m. 29
12857142857142857142857142857142857143, 25714285714285714285714285714285714286, 117391304347826086956521739130434782608695652173913043478261 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(4)=156521739130434782608695652173913043478260869565217391304348.

CROSSREFS

Cf. A102567, A106497, A115527 - A115555.

Sequence in context: A095466 A115555 A095468 * A173907 A095470 A095472

Adjacent sequences:  A115553 A115554 A115555 * A115557 A115558 A115559

KEYWORD

nonn,base,bref

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 25 2006

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.