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A116276 Numbers n such that n times n+5 gives the concatenation of two numbers m and m-2. 5
70, 79822843, 69852478553064869297984899963805, 77473062193002372448027740546437, 77747359197583788609974143907617, 84341826458653210947638195982113, 85367942837521291760016984490249 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

79822843 * 79822848 = 63716866//63716864, where // denotes concatenation.

CROSSREFS

Cf. A116107, A116268, A116275, A116277, A116281.

Sequence in context: A172829 A066789 A103165 * A056666 A172680 A121338

Adjacent sequences:  A116273 A116274 A116275 * A116277 A116278 A116279

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006

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Last modified February 17 12:36 EST 2012. Contains 206021 sequences.