What do numbers look like? ( John Williamson) https://johnhw.github.io/umap_primes/index.md.html
Very interesting visualizations have been obtained relatively recently. Just the integers from 1 to 1 mio have been considered, each integer converted to a vector corresponding to its prime decomposition, thus obtained a dataset in higher-dimensional space, and final step is applying dimensional reduction technique (UMAP (see e.g. John Baez's blog for discussion)) to get 2-dimensional matrix which is visualized.
Other sequences can be processed in a similar way to get more beautiful pictures (see the link above).
