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Search: id:A103396
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| 4, 9, 15, 21, 33, 38, 58, 65, 86, 106, 121, 129, 265, 511, 2038, 2059, 4097, 4174, 7894, 16021, 19857, 31313, 32419, 33238, 37711, 116197, 196609, 220937, 262978, 273926, 955743, 34826059, 64229819, 67835071, 77834009, 497049562, 4370946037
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Intersection of A103376 with A001358.
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MATHEMATICA
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SemiprimeQ[n_] := Plus @@ FactorInteger[n][[All, 2]] == 2; k = 8; Do[a[n] = 1, {n, k + 1}]; a[n_] := a[n] = a[n - k] + a[n - k - 1]; Union[Select[Array[a, 280], SemiprimeQ]]
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CROSSREFS
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Cf. A001358, A103376, A103386, A103392-A103401.
Adjacent sequences: A103393 A103394 A103395 this_sequence A103397 A103398 A103399
Sequence in context: A062721 A104243 A099055 this_sequence A103400 A103399 A103397
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KEYWORD
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nonn,easy
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AUTHOR
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Jonathan Vos Post (jvospost3(AT)gmail.com), Feb 05 2005
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EXTENSIONS
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Edited and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 10 2005
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