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A065549
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a(1) = 1; for n > 1, a(n) = 2^((A000043(n)-1)/2).
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2
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2, 4, 8, 64, 256, 512, 32768, 1073741824, 17592186044416, 9007199254740992, 9223372036854775808, 1852673427797059126777135760139006525652319754650249024631321344126610074238976
(list; graph; refs; listen; history; internal format)
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