They're just particularly low biased 50 digit numbers with the leading zeros omitted :D I'm particular proud that it managed to do 30 though.

It's interesting that none of the the numbers start with zero. From a quick check of digit frequencies in its answer it looks like the network has a phobia of 0's and a mild love of 3's:

Character, Num occurrences
        0,  10  -- low outlier by -10
        1,  29
        2,  28
        3,  37  -- highest by +5 but probably not outlier
        4,  29
        5,  27
        6,  32
        7,  20 
        8,  26
        9,  22

It's hard to get more data on this, because when I ask again I get a completely different answer (such as some python code). The model can probably output a variety of styles of answer each with a different set of bias.