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Search: id:A116140
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A116140 Numbers n such that n concatenated with n-3 gives the product of two numbers which differ by 9. +0
5
5, 7403, 8885, 12563, 41675, 54239, 2353623, 2650793, 7717533, 527390351115, 567933643889, 627121279653, 671264212463, 1335723019653517755, 2049430589972661489, 2995303155542192885, 4026214090447622723 (list; graph; listen)
OFFSET

1,1

EXAMPLE

7717533//7717530 = 8784945 * 8784954, where // denotes concatenation.

CROSSREFS

Cf. A116133, A116139, A116147, A116271.

Sequence in context: A079812 A137694 A117711 this_sequence A067816 A076629 A052027

Adjacent sequences: A116137 A116138 A116139 this_sequence A116141 A116142 A116143

KEYWORD

nonn,base

AUTHOR

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

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.


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