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A115547
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Numbers k such that the concatenation of 7*k with k gives a square.
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0
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11909262759924385633270321361058601134215500945179584121, 21172022684310018903591682419659735349716446124763705104, 33081285444234404536862003780718336483931947069943289225, 47637051039697542533081285444234404536862003780718336484
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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