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A337915
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Squarefree multiples of 15 such that a(n)+15 is also squarefree and all integers between are not squarefree.
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4
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36442589727570, 59068995605115, 70458333341415, 93553802716515, 99321073884915, 104575423448670, 225934088816670, 241427108122215, 245679971474670, 257496300981015, 263154806220570, 275458942061070, 312686748592170, 425667633054315, 448345051339515
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