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A116348
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Numbers k such that k*(k+1) gives the concatenation of two numbers m and m+9.
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3
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10, 90, 3678, 6322, 8788, 48745, 51255, 87619, 3762556, 6237444, 9217102, 3266298276, 3520463766, 6479536234, 6733701724, 8063694650, 8317860140, 4689524709430934476, 5310475290569065524, 7416797436703661749
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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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