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A045502
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2n+1 and 3n+1 are squares.
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2
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0, 40, 3960, 388080, 38027920, 3726348120, 365144087880, 35780394264160, 3506113493799840, 343563341998120200, 33665701402321979800, 3298895174085555900240, 323258061358982156243760
(list; graph; refs; listen; history; internal format)
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