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A116337
Numbers k such that k*(k+4) gives the concatenation of two numbers m and m+7.
5
8217108, 8030443878983905982, 43467818511541680701794365325328847002052, 56532181488458319298205634674671152997945
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
EXAMPLE
8217108 * 8217112 = 6752089//6752096, where // denotes concatenation.
CROSSREFS
Cf.
A116173
,
A116323
,
A116336
,
A116338
,
A116350
.
Cf.
A116304
,
A116257
.
Sequence in context:
A059693
A083629
A116304
*
A234049
A233484
A363792
Adjacent sequences:
A116334
A116335
A116336
*
A116338
A116339
A116340
KEYWORD
nonn
,
base
AUTHOR
Giovanni Resta
, Feb 06 2006
STATUS
approved
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Last modified September 4 14:23 EDT 2024. Contains 375683 sequences. (Running on oeis4.)