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Search: id:A138789
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| 0, 2, 2, 2, 3, 2, 2, 3, 3, 2, 4, 5, 2, 7, 4, 3, 5, 5, 3, 6, 3, 5, 3, 4, 3, 4, 3, 7, 5, 6, 4, 2, 4, 4, 7, 5, 6, 5, 7
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Indices where number 1 occured in this sequence see A138790
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MATHEMATICA
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b = {}; a = {}; Do[w = RealDigits[n]; w = First[w]; Do[AppendTo[a, w[[k]]], {k, 1, Length[w]}]; p = FromDigits[Reverse[a]]; m = FactorInteger[p]; AppendTo[b, Length[m]], {n, 1, 39}]; b (*Artur Jasinski*)
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CROSSREFS
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Cf. A000422, A116504, A007908, A116505, A007878, A138787.
Sequence in context: A091322 A053760 A129654 this_sequence A116504 A104011 A099774
Adjacent sequences: A138786 A138787 A138788 this_sequence A138790 A138791 A138792
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KEYWORD
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nonn
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Mar 30 2008
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