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A115617
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Smallest number for which Knuth's power tree method produces an addition chain of length n.
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1
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2, 3, 5, 7, 11, 19, 29, 47, 71, 127, 191, 319, 551, 1007, 1711, 2687, 4703, 8447, 15179, 28079, 45997, 89599, 138959, 257513, 485657, 834557, 1433501, 2854189, 4726127, 8814047, 15692153, 30078877, 53574623, 94189807, 177848059, 322928189
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OFFSET
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1,1
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COMMENTS
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Minimum number in row of power tree A114622. The first 11 terms are identical with A003064.
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LINKS
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CROSSREFS
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Cf. A114622 [The power tree (as defined by Knuth)], A003064 [Smallest number with addition chain of length n], A113945 [numbers such that Knuth's power tree method produces a result deficient by 1].
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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