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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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
7142857142857142857143^2 = 5102040816326530612245_1020408163265306122449.
CROSSREFS
Sequence in context: A337094 A076335 A280301 * A343266 A330009 A171265
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 18 09:17 EDT 2024. Contains 371769 sequences. (Running on oeis4.)