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Search: id:A121540
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| A121540 |
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Increasing sequence: "if n appears a*n+b does not", case a(1)=3, a=2, b=1. |
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+0
5
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| 3, 4, 5, 6, 8, 10, 12, 14, 15, 16, 18, 19, 20, 22, 23, 24, 26, 27, 28, 30, 32, 34, 35, 36, 38, 40, 42, 43, 44, 46, 48, 50, 51, 52, 54, 56, 58, 59, 60, 62, 63, 64, 66, 67, 68, 70, 72, 74, 75, 76, 78, 79, 80, 82, 83, 84, 86, 88, 90, 91, 92, 94, 95, 96, 98, 99, 100
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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s={3}; With[{a=2, b=1}, Do[If[FreeQ[s, (n-b)/a], AppendTo[s, n]], {n, 4, 100}]]; s
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CROSSREFS
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Cf. A121538, A121539, A121541, A121542.
Sequence in context: A136497 A055563 A090161 this_sequence A026512 A026506 A051916
Adjacent sequences: A121537 A121538 A121539 this_sequence A121541 A121542 A121543
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Aug 08 2006
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