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A115542
Numbers k such that k^2 is the concatenation of two numbers 5*m and m.
0
7142857142857142857143, 14285714285714285714286, 21428571428571428571429, 730337078651685393258426966292134831460674157303370786517
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
EXAMPLE
7142857142857142857143^2 = 5102040816326530612245_1020408163265306122449.
CROSSREFS
Cf.
A102567
,
A106497
,
A115527
-
A115556
.
Sequence in context:
A337094
A076335
A280301
*
A343266
A330009
A171265
Adjacent sequences:
A115539
A115540
A115541
*
A115543
A115544
A115545
KEYWORD
nonn
,
base
AUTHOR
Giovanni Resta
, Jan 25 2006
EXTENSIONS
Definition modified by
Georg Fischer
, Jul 26 2019
STATUS
approved
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Last modified April 23 13:11 EDT 2024. Contains 371913 sequences. (Running on oeis4.)