The first interesting
feature I call the ‘reveal shell’, which is the shell whose polygon number is the
product of the proceeding prime numbers, for 3 this is 3×2×1=6. When we put the reveal shell in place, and skirt around the inside of the shell anticlockwise, the next
prime number in the sequence of prime numbers is revealed where there is no
exclusion line. Prime numbers up to the
current shell (the 3 shell) are excluded, they are already in place. For some reason the 1 always comes out, but the next number that is not occluded by an
exclusion line is the next prime number.
This number is 5,
Reveal Shell of the 3
shell .