A115534 Numbers k such that k^2 is the concatenation of two numbers 3*m and m.

85714286, 128571429, 171428572, 69230769231, 92307692308, 115384615385, 138461538462, 161538461539, 85714285714285714285714285714285714285714285714286

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Example

85714286^2 = 73469388_24489796.

Crossrefs

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A230794 A186922 A185806 * A138030 A104964 A018787

Adjacent sequences: A115531 A115532 A115533 * A115535 A115536 A115537

Keyword

nonn,base

Author

Giovanni Resta, Jan 25 2006

Extensions

Definition modified by Georg Fischer, Jul 26 2019

Status

approved