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 A103670 Smallest m such that A102730(m) = n. 1
 0, 1, 2, 3, 4, 5, 8, 23, 117, 155, 1410, 3702 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS 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] LINKS EXAMPLE 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. CROSSREFS Sequence in context: A116657 A268274 A079383 * A289081 A105950 A227778 Adjacent sequences:  A103667 A103668 A103669 * A103671 A103672 A103673 KEYWORD nonn,hard AUTHOR Reinhard Zumkeller, Feb 12 2005 EXTENSIONS a(11) and a(12) from D. S. McNeil, Aug 21 2011 STATUS approved

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