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A055075
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Numbers expressible as the sum of no more than 5 squares of composite numbers, allowing repetitions.
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1
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16, 32, 36, 48, 52, 64, 68, 72, 80, 81, 84, 88, 96, 97, 100, 104, 108, 112, 113, 116, 117, 120, 124, 128, 129, 132, 133, 136, 140, 144, 145, 148, 149, 152, 153, 160, 161, 162, 164, 165, 168, 169, 172, 176, 177, 178, 180, 181, 184, 185, 188, 189, 192, 193
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OFFSET
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1,1
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COMMENTS
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1167 is the largest of the 256 positive integers not in the sequence.
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REFERENCES
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R. K. Guy, Unsolved Problems In Number Theory, section C20.
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LINKS
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R. G. E. Pinch, L. E. Mattics and Emil Grosswald, Solutions to E3262, Amer. Math. Monthly, 97 (No. 3, 1990), 240-242.
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EXAMPLE
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52=4^2+6^2, so 52 is in the sequence.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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