\[\rselection{A^{m}_{m+2s}(q)\\
B^{m}_{m+2s}(q)}=\left(\dfrac{(-1)^{s}m!}{s!(m+s)!}\left(\frac{q}{4}\right)^{s%
}+O\left(q^{s+1}\right)\right)\lselection{A^{m}_{m}(q),\\
B^{m}_{m}(q),}\]