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Search: id:A087259
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| A087259 |
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a(n)=LCM[n, A025586(n)], least common multiple of n and largest value in 3x+1 iteration list started at n. |
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+0
1
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| 1, 2, 48, 4, 80, 48, 364, 8, 468, 80, 572, 48, 520, 364, 480, 16, 884, 468, 1672, 20, 1344, 572, 3680, 24, 2200, 520, 249264, 364, 2552, 480, 286192, 32, 3300, 884, 1120, 468, 4144, 1672, 11856, 40, 378512, 1344, 8428, 572, 6120, 3680, 433904, 48, 7252, 2200
(list; graph; listen)
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OFFSET
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1,2
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MATHEMATICA
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c[x_] := (1-Mod[x, 2])*(x/2)+Mod[x, 2]*(3*x+1)c[1]=1; fpl[x_] := Delete[FixedPointList[c, x], -1] Table[LCM[w, Max[fpl[w]]], {w, 1, 256}]
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CROSSREFS
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Cf. A025586.A033496-A087261.
Sequence in context: A087265 A079307 A005814 this_sequence A083251 A075690 A101362
Adjacent sequences: A087256 A087257 A087258 this_sequence A087260 A087261 A087262
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Sep 09 2003
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