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A123008
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Scaled 2 X 2 vextor matrix Markov for characteristic Polynomial ( tin mean): -1 - 2 x/5 + x^2.
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0
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1, 5, 35, 195, 1265, 7405, 46435, 277995, 1716865, 10383605, 63688835, 386967795, 2366156465, 14406507805, 87966927235, 536096549595, 3271366280065, 19945146300005, 121674449601635, 741977556703395, 4525816353447665
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| Jay Kappraff, Beyond Measure, A Guided Tour Through Nature, Myth and Number, World Scientific, 2002.
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FORMULA
| M := {{0, 1}, {1, 2/5}}; v[1] = {1, 1}; v[n_] := v[n] = M.v[n - 1]; a(n) = v[n][[1]]
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MATHEMATICA
| M := {{0, 1}, {1, 2/5}}; v[1] = {1, 1}; v[n_] := v[n] = M.v[n - 1]; a = Table[v[n][[1]]*5^(n - 1), {n, 1, 30}]
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CROSSREFS
| Cf. A002534.
Sequence in context: A165755 A166149 A002737 * A038143 A024062 A180250
Adjacent sequences: A123005 A123006 A123007 * A123009 A123010 A123011
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KEYWORD
| nonn,uned
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AUTHOR
| Roger Bagula and Gary Adamson (rlbagulatftn(AT)yahoo.com), Sep 23 2006
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