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A115546 Numbers k such that k^2 is the concatenation of two numbers 6*m and m. 0
857143, 1714286, 857142857142857142857142857142857142857142857143, 1714285714285714285714285714285714285714285714286 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
857143^2 = 734694_122449.
CROSSREFS
Sequence in context: A103913 A151939 A172846 * A233957 A224596 A175279
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 March 19 06:32 EDT 2024. Contains 370953 sequences. (Running on oeis4.)