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

Author

Giovanni Resta, Jan 25 2006

Keywords

• nonn
• base

Examples

			85714286^2 = 73469388_24489796.
		

Crossrefs

Cf. A102567, A106497, A115527 - A115556.

Extensions

Definition modified by Georg Fischer, Jul 26 2019