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Search: id:A123009
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| A123009 |
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Scaled 2 X 2 vextor matrix Markov for characteristic Polynomial ( tin mean): -1 - 2 x/7 + x^2. |
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+0
1
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| 1, 7, 63, 469, 4025, 31031, 259287, 2039093, 16783249, 133482055, 1089343311, 8719307317, 70816436873, 568878932279, 4607763271335, 37090594224341, 299961588744097, 2417362294480903, 19532842437422559, 157516437304409365
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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Jay Kappraff, Beyond Measure, A Guided Tour Through Nature, Myth and Number, World Scientific, 2002.
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FORMULA
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M := {{0, 1}, {1, 2/7}}; v[1] = {1, 1}; v[n_] := v[n] = M.v[n - 1]; a(n) = v[n][[1]]
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MATHEMATICA
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M := {{0, 1}, {1, 2/7}}; v[1] = {1, 1}; v[n_] := v[n] = M.v[n - 1]; a = Table[v[n][[1]]*7^(n - 1), {n, 1, 30}]
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CROSSREFS
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Cf. A002534.
Sequence in context: A043027 A165759 A166153 this_sequence A024088 A155132 A015684
Adjacent sequences: A123006 A123007 A123008 this_sequence A123010 A123011 A123012
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KEYWORD
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nonn,uned
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AUTHOR
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Roger Bagula and Gary Adamson (rlbagulatftn(AT)yahoo.com), Sep 23 2006
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