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A268854
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a(n) is the smallest magic sum of any 3 X 3 magic square which contains exactly n triangular numbers.
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4
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OFFSET
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0,1
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LINKS
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The Prime Puzzles and Problems Connection, Problem 63
The Prime Puzzles and Problems Connection, Puzzle 79
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CROSSREFS
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KEYWORD
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nonn,fini,hard,more
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AUTHOR
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STATUS
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approved
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