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A067124
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Floor [sqrt{concatenation of first n squares}].
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1
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1, 3, 12, 122, 1221, 12213, 122132, 1221321, 12213211, 386215660, 12213211555, 386215660604, 12213211555380, 386215660604902, 12213211555380554, 386215660604902322, 12213211555380554371, 386215660604902322908
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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EXAMPLE
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a(6) = floor[ sqrt{149162536}] = 12213.
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CROSSREFS
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KEYWORD
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easy,nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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