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1, 0, 2, 1, 1, 0, 3, 0, 1, 1, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1, 5, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 4, 1, 2, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 6, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 2, 2, 1, 1, 1, 4, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 1, 1, 1, 5, 1, 1, 1, 2
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internal format)
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OFFSET
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2,3
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LINKS
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Table of n, a(n) for n=2..100.
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MATHEMATICA
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fb[n_] := Block[{rd, o, p}, rd = RealDigits[1/n]; o = Last[rd]; p = First[rd]; If[ ! IntegerQ[Last[p]], p = Most[p]]; Length[p] - o]; Table[fb[n], {n, 120}] (*Chandler*)
r[x_]:=RealDigits[1/x]; w[x_]:=First[r[x]]; f[x_]:=First[w[x]]; l [x_]:=Last[w[x]]; z[x_]:=Last[r[x]]; b[x_] := Which[IntegerQ[l[x]], Length[w[x]]-1*z[x], IntegerQ[f[x]] ==False, -1*z[x], True, Length[Drop[w[x], -1]]-1*z[x]]; (*Havermann*)
Table[b[i], {i, 2, 128}]
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CROSSREFS
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Sequence in context: A163540 A127967 A147602 * A073202 A055212 A028422
Adjacent sequences: A114203 A114204 A114205 * A114207 A114208 A114209
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, Oct 17 2006
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EXTENSIONS
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More terms from Ray Chandler and Hans Havermann, Oct 18 2006
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STATUS
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approved
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