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Search: id:A005309
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| A005309 |
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Fermionic string states.
(Formerly M1125)
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+0
1
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OFFSET
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0,3
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COMMENT
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See the reference for precise definition.
The g.f. -(1-2*z+2*z**2)/(-1+2*z) conjectured by S. Plouffe in his 1992 dissertation is unlikely to be correct.
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
T. Curtright, ``Counting symmetry patterns in the spectra of strings,'' in H. J. de Vega and N. S\'{a}nchez, editors, String Theory, Quantum Cosmology and Quantum Gravity. Integrable and Conformal Invariant Theories. World Scientific, Singapore, 1987, pp. 304-333.
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LINKS
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S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
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CROSSREFS
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Sequence in context: A115909 A056644 A007813 this_sequence A078389 A059173 A027560
Adjacent sequences: A005306 A005307 A005308 this_sequence A005310 A005311 A005312
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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