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A107458
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G.f.: (-1+x^2+x^3)/(-1+x^2+x^3+x^4).
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3
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1, 0, 0, 0, 1, 0, 1, 1, 2, 2, 4, 5, 8, 11, 17, 24, 36, 52, 77, 112, 165, 241, 354, 518, 760, 1113, 1632, 2391, 3505, 5136, 7528, 11032, 16169, 23696, 34729, 50897, 74594, 109322, 160220, 234813, 344136, 504355, 739169, 1083304, 1587660, 2326828, 3410133, 4997792, 7324621
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,9
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REFERENCES
| C. K. Fan, Structure of a Hecke algebra quotient. J. Amer. Math. Soc. 10 (1997), no. 1, 139-167. [Page 156, f^2_n.]
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LINKS
| Index entries for sequences related to linear recurrences with constant coefficients
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FORMULA
| a(0)=1, a(1)=0, a(2)=0, a(3)=0, a(n)=a(n-2)+a(n-3)+a(n-4) [From Harvey P. Dale, June 20 2011]
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MATHEMATICA
| CoefficientList[Series[(-1+x^2+x^3)/(-1+x^2+x^3+x^4), {x, 0, 50}], x] (* or *) LinearRecurrence[{0, 1, 1, 1}, {1, 0, 0, 0}, 50] (* From Harvey P. Dale, June 20 2011 *)
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CROSSREFS
| Cf. A013979, A135851, A078012.
Sequence in context: A089299 A017910 A013979 * A060280 A006206 A095719
Adjacent sequences: A107455 A107456 A107457 * A107459 A107460 A107461
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 08 2008
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