  In this paper, we answer a question of Li, Ngo, and Rhoades concerning a set
of $q$-series related to the $q$-hypergeometric series $\sigma$ from
Ramanajun's lost notebook. Our results parallel a theorem of Cohen which says
that $\sigma$, along with its partner function $\sigma^*$, interpolate the
coefficients of a Maass waveform of eigenvalue $1/4$.
