A116272 - OEIS

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A116272

n times n+1 gives the concatenation of two numbers m and m-2.

4

6, 7282818, 8171728, 4550754022124826467, 5449245977875173533, 8176518705147900806, 8951999555715882882349355522889, 9861090464806791973258446431980

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

8171728 * 8171729 = 6677714//6677712, where // denotes

concatenation.

CROSSREFS

Cf. A116141, A116265, A116273, A116285.

Sequence in context: A297528 A172876 A269516 * A273723 A182792 A067484

Adjacent sequences: A116269 A116270 A116271 * A116273 A116274 A116275

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved