Let $a$ be a positive integer with $a > 1$. We show\[[0;a,a^2,a^3,a^4,\ldots]=\frac{\sum\nolimits^{\infty}_{s=0}a^{-(s+1)^2}\prod\nolimits^s_{i=1}(a^{2i}-1)^{-1}}{\sum\nolimits^{\infty}_{s=0}a^{-s^2}\prod\nolimits^s_{i=1}(a^{2i}-1)^{-1}}\]and\[[0;a,a,a^2,a^2,a^3,a^3,\ldots]=\frac{\sum\nolimits^{\infty}_{s=0}a^{-\frac{(s+1)(s+2)}{2}}\prod\nolimits^s_{i=1}(a^{i}-1)^{-1}}{\sum\nolimits^{\infty}_{s=0}a^{-\frac{s(s+1)}{2}}\prod\nolimits^s_{i=1}(a^{i}-1)^{-1}}\]A more general case is discussed.