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A116263 n times n+7 gives the concatenation of two numbers m and m-4. 5
83, 76980, 714687, 952311, 90438188, 96320541, 32980078899026, 34346653774235, 42816188292270, 42881990066485, 57118009933509, 57183811707724, 65653346225759, 67019921100968, 81321742742207 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

96320541 * 96320548 = 92776472//92776468, where // denotes

concatenation.

CROSSREFS

Cf. A116132, A116250, A116262, A116264, A116269.

Sequence in context: A268987 A087189 A201727 * A287686 A087532 A116307

Adjacent sequences:  A116260 A116261 A116262 * A116264 A116265 A116266

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified June 14 16:19 EDT 2021. Contains 345037 sequences. (Running on oeis4.)