New conjugacy-class sum formulas enumerate double cosets and self-inverse double cosets in S_n, GL_n(F_q), and type B, yielding new OEIS terms and large polytope counts.
Billey, Matjaˇ z Konvalinka, T
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On the enumeration of double cosets and self-inverse double cosets
New conjugacy-class sum formulas enumerate double cosets and self-inverse double cosets in S_n, GL_n(F_q), and type B, yielding new OEIS terms and large polytope counts.