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Search: id:A105264
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| A105264 |
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Theta(1) Pisot substitution level 7 : characteristic polynomial x^4-x^3-1=0. |
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+0
1
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| 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 4, 1, 2, 3, 3, 4, 3, 4, 4, 4, 1, 3, 4, 4, 4, 1, 4, 4, 1, 4, 1, 4, 1, 2, 2, 3, 3, 4, 3, 4, 4, 4, 1, 3, 4, 4, 4, 1, 4, 4, 1, 4, 1, 4, 1, 2, 3, 4, 4, 4, 1, 4, 4, 1, 4, 1, 4, 1, 2, 4, 4, 1, 4, 1, 4, 1, 2, 4, 1, 4, 1, 2, 4, 1, 2, 4, 1, 2, 3, 2, 3, 3, 4, 3, 4, 4, 4, 1, 3, 4
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Program for getting Polynomial: s[1] = {2, 0, 0, 0}; s[2] = {3, 0, 0, 0}; s[3] = {4, 0, 0, 0}; s[4] = {4, 1, 0, 0}; M = Table[Table[Count[s[j], i], {i, 1, n0}], {j, 1, n0}] Det[M - x*IdentityMatrix[n0]]
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LINKS
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Eric Weisstein's World of Mathematics, Pisot Number
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FORMULA
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1->{2}, 2->{3}, 3->{4}, 4->{4, 1}
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MATHEMATICA
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s[1] = {2}; s[2] = {3}; s[3] = {4}; s[4] = {4, 1}; t[a_] := Join[a, Flatten[s /@ a]]; p[0] = {1}; p[1] = t[{1}]; p[n_] := t[p[n - 1]] aa = p[7]
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CROSSREFS
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Cf. A073058.
Sequence in context: A076235 A057941 A126071 this_sequence A063787 A129843 A050430
Adjacent sequences: A105261 A105262 A105263 this_sequence A105265 A105266 A105267
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KEYWORD
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nonn,uned
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AUTHOR
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Roger Bagula (rlbagulatftn(AT)yahoo.com), Apr 15 2005
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