$$Q_2=\frac{\begin{array}{l}72789848570668741304283\dots \\ 36124347736557760097920\dots \\ 25799724606605332096715\dots \\ 10416153622193809833373\dots \\ 06264793559557849662263\dots \\ 31511063109122609667568\dots \\ 77897797682168251265353\dots \\ 73030692884779015232270\dots \\ 13159658247897670304354\dots \\ 02490295493942131091063\dots \\ 934014849602813952\end{array}}{\begin{array}{l}11187071843154281720476\dots \\ 08747409173378543817936\dots \\ 41291611443130662899652\dots \\ 59377090978187244251666\dots \\ 33774545915209355828867\dots \\ 17656540612737332317877\dots \\ 73611338297486163914262\dots \\ 84152655437972744796924\dots \\ 27652260844707187532155\dots \\ 25487295285372502631868\dots \\ 5997495262134665215\end{array}}$$

This fraction was constructed deliberately so it draws out infinitely many copies of the blackboard bold letter $\mathbb{Q}$. The authors also give two very similar numbers, equivalent to several hundred decimal places, the first of which draws just a single copy of the letter and the other of which draws “random” noise.