 | ECS #118 |
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1. Description
No description available
2. Specification
This unlabelled structure is specified as S in
\displaystyle
\left\{ B={\rm Prod} \left( C,Z \right) ,C={\rm Set} \left( B \right)
,S={\rm Cycle} \left( B \right) \right\}
other formats
3. Coefficients
3.1. First terms
4. Ordinary generating function
\displaystyle
[B \left( x \right) =C \left( x \right) x,C \left( x \right) ={{\rm e}^
{\sum _{j_{{1}}=1}^{\infty }{\frac {B \left( {x}^{j_{{1}}} \right) }{j_
{{1}}}}}},S \left( x \right) =\sum _{j_{{2}}=1}^{\infty }{\frac {{\rm
phi} \left( j_{{2}} \right) \ln \left( \left( 1-B \left( {x}^{j_{{2}}
} \right) \right) ^{-1} \right) }{j_{{2}}}},Z \left( x \right) =x]
other formats
5. References
6. Random structure
Search a combinatorial structure by: (firstTerms should be a sequence of integers, separated by commas).