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A193075
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Decimal expansion of the constant term of the reduction of t^x by x^2->x+1, where t=(1+sqrt(5))/2, the golden ratio.
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3
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1, 1, 3, 9, 5, 6, 4, 7, 0, 6, 8, 7, 9, 3, 2, 1, 6, 0, 8, 2, 3, 7, 8, 8, 1, 6, 5, 0, 5, 7, 9, 3, 1, 8, 7, 1, 1, 3, 1, 7, 3, 5, 8, 0, 0, 7, 5, 5, 8, 5, 2, 2, 8, 1, 7, 4, 5, 0, 1, 3, 3, 5, 1, 7, 8, 9, 0, 7, 2, 4, 8, 6, 0, 3, 9, 5, 9, 6, 7, 2, 5, 7, 3, 4, 6, 3, 0, 2, 0, 5, 5, 2, 9, 8, 2, 5, 0, 2, 2, 0
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OFFSET
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1,3
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COMMENTS
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Reduction of a function f(x) by a substitution q(x)->s(x) is introduced at A193010.
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LINKS
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Table of n, a(n) for n=1..100.
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EXAMPLE
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constant=1.13956470687932160823788165057931871131735800...
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MATHEMATICA
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t = GoldenRatio
f[x_] := t^(x); r[n_] := Fibonacci[n];
c[n_] := SeriesCoefficient[Series[f[x], {x, 0, n}], n]
u0 = N[Sum[c[n]*r[n - 1], {n, 0, 100}], 100]
RealDigits[u0, 10] (* A193075 *)
u1 = N[Sum[c[n]*r[n], {n, 0, 100}], 100]
RealDigits[u1, 10] (* A193076 *)
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CROSSREFS
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Cf. A193010, A192232, A193076.
Sequence in context: A085851 A212321 A092041 * A106586 A010633 A199053
Adjacent sequences: A193072 A193073 A193074 * A193076 A193077 A193078
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KEYWORD
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nonn,cons
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AUTHOR
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Clark Kimberling, Jul 15 2011
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STATUS
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approved
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