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A116139 Numbers n such that n concatenated with n-3 gives the product of two numbers which differ by 8. 5
43, 20440836, 30017751, 61336887, 52400871197755334426147587, 53651708763838760619655612, 56652002793835820319625612, 57952296063256269823192087, 17684775866714240650923831481623 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

61336887//61336884 = 78317866 * 78317874, where // denotes concatenation.

CROSSREFS

Cf. A116126, A116205, A116140, A116146, A116270.

Sequence in context: A228546 A125828 A177417 * A087529 A050525 A138086

Adjacent sequences:  A116136 A116137 A116138 * A116140 A116141 A116142

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified September 19 15:08 EDT 2019. Contains 327198 sequences. (Running on oeis4.)