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A116120 Numbers n such that n concatenated with n-5 gives the product of two numbers which differ by 1. 4
7, 55, 5255, 6295, 75511, 92137, 5551405, 7943911, 1257669432489239675, 2148743977942130765, 2877834685014859837, 4164942361780146967, 10235898967817894552965, 15389481849681116007757 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

CROSSREFS

Cf. A116115, A116121, A116134, A116251.

Sequence in context: A305282 A197228 A009521 * A056719 A038855 A097254

Adjacent sequences:  A116117 A116118 A116119 * A116121 A116122 A116123

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified April 24 18:03 EDT 2019. Contains 322430 sequences. (Running on oeis4.)