Let's explore making spirals from the middle outwards.
We'll use a short list of numbers 1 to 144 and some different multiples.
With the multiples of 5 I found these red arrow heads and the green lines that joined up interestingly.
A different spiral and looking at the multiples of 4 gave these straight line arrangements - I wonder why, any ideas?
Lastly a more open spiral and multiples of 6 showed these sloping lines.
You can also draw spirals on triangular paper, here the 4's are highlighted.