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A115538
Numbers k such that k^2 is the concatenation of two numbers 4*m and m.
0
84210526316, 105263157895, 126315789474, 147368421053, 168421052632, 189473684211, 114285714285714286, 171428571428571429, 7058823529411764705882352941176470588235294117647059
OFFSET
1,1
EXAMPLE
84210526316^2 = 70914127424_17728531856.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Jan 25 2006
EXTENSIONS
Definition modified by Georg Fischer, Jul 26 2019
STATUS
approved