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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
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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
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Last modified September 4 02:28 EDT 2024. Contains 375679 sequences. (Running on oeis4.)