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A115530 Numbers n such that the square of n is the concatenation of two numbers 2*m and m. 0
5714285714285714286, 8571428571428571429, 11428571428571428572, 465116279069767441860465116279070, 511627906976744186046511627906977, 558139534883720930232558139534884, 604651162790697674418604651162791 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

5714285714285714286^2 = 3265306122448979592_1632653061224489796.

CROSSREFS

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A246253 A003812 A003805 * A120317 A219283 A306797

Adjacent sequences:  A115527 A115528 A115529 * A115531 A115532 A115533

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 25 2006

EXTENSIONS

Definition modified by Georg Fischer, Jul 25 2019

STATUS

approved

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Last modified October 18 08:08 EDT 2019. Contains 328146 sequences. (Running on oeis4.)