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Search: id:A080204
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| A080204 |
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Number of fixed points under n-fold inflation for the substitution rule a->abc, b->ab, c->b that underlies the Kolakoski (3,1) sequence, compare math.MG/0206098. |
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+0
1
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| 1, 3, 10, 23, 51, 114, 253, 559, 1234, 2723, 6007, 13250, 29225, 64459, 142170, 313567, 691595, 1525362, 3364293, 7420183
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OFFSET
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1,2
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REFERENCES
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J. E. Anderson and I. F. Putnam, Topological invariants for substitution tilings and their associated C*-algebras, Ergod. Theory and Dyn. Systems 18 (1998) 509-537
M. Baake and B. Sing, Kolakoski-(3,1) is a (deformed) model set, math.MG/0206098
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FORMULA
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obtained from dynamical zeta function Z(x)=(1-x)/(1-2x-x^3), so that x Z'(x)/Z(x) is the ordinary power series generating function.
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CROSSREFS
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Sequence in context: A041403 A077126 A068043 this_sequence A115982 A134438 A092255
Adjacent sequences: A080201 A080202 A080203 this_sequence A080205 A080206 A080207
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KEYWORD
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easy,nonn
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AUTHOR
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Michael Baake and Uwe Grimm (u.g.grimm(AT)open.ac.uk), Mar 20 2003
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