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A104627
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Numbers having 4 1's in their base-phi representation.
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5
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9, 10, 12, 13, 14, 16, 17, 20, 21, 25, 36, 49, 50, 54, 65, 94, 125, 126, 130, 141, 170, 246, 324, 325, 329, 340, 369, 445, 644, 845, 846, 850, 861, 890, 966, 1165, 1686, 2209, 2210, 2214, 2225, 2254, 2330, 2529, 3050, 4414
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OFFSET
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1,1
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LINKS
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Amiram Eldar, Table of n, a(n) for n = 1..250
Eric Weisstein's World of Mathematics, Phi Number System.
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MATHEMATICA
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q[n_] := Plus @@ RealDigits[n, GoldenRatio, 2*Ceiling[ Log[GoldenRatio, n]] ][[1]] == 4; Select[Range[4500], q] (* Amiram Eldar, Jan 20 2022 *)
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CROSSREFS
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Cf. A005248, A104626, A104628.
Sequence in context: A136835 A031166 A202706 * A188057 A119956 A059102
Adjacent sequences: A104624 A104625 A104626 * A104628 A104629 A104630
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KEYWORD
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nonn,base
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AUTHOR
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Eric W. Weisstein, Mar 17 2005
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STATUS
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approved
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