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A074852
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Composite n such that n and n+2 are prime powers.
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1
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9, 25, 27, 81, 125, 6561, 24389, 59049, 161051, 357911, 571787, 1442897, 4782969, 5177717, 14348907, 18191447, 30080231, 73560059, 80062991, 118370771, 127263527, 131872229, 318611987, 344472101, 440711081, 461889917, 590589719
(list; graph; refs; listen; history; internal format)
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