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A103670
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Smallest m such that A102730(m) = n.
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1
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0, 1, 2, 3, 4, 5, 8, 23, 117, 155, 1410, 3702
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OFFSET
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1,3
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COMMENTS
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Reinhard Zumkeller conjectures (at A102730) that this sequence is finite. I conjecture the contrary, that a(n) exists for every n. Further, I expect a(n) << n^n. [Charles R Greathouse IV, Aug 21 2011]
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LINKS
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EXAMPLE
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a(6) = 5: A102730(5) = #{0,1,2,3,4,5} = 6;
a(7) = 8: A102730(8) = #{0,1,2,3,4,7,8} = 7;
a(8) = 23: A102730(23) = #{0,1,2,3,4,5,6,23} = 8;
a(9) = 117: A102730(117) = #{0,1,2,3,4,5,6,7,117} = 9;
a(10) = 155: A102730(155) = #{0,1,2,3,4,5,6,7,8,155} = 10.
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CROSSREFS
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KEYWORD
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nonn,hard
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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