There was no static training file. The model sampled integers online every
step. This dataset replays that sampler with the same Python RNGs used in
train_recursive:
seed = 42 for every run. Each train() call resets both RNGs, so later
finetunes are not a continuation of earlier streams.… See the full description on the dataset page:
https://huggingface.co/datasets/Amartya77/Arithmetic.