pattern - Fill The grid - 3.0

Can you fill this grid ? Version ($\pi$)

In text:

?14516
243748

120581
17186?
01?857

HINT 1

It's a big spiral!!!

HINT 2

It starts from 0 at the center!

HINT 3

Colors included to identify

Answer

The final grid is

014516

243748
120581
171869
010857

And the pattern is

A clockwise spiral out from the center of the following function, displayed such that each digit of a multidigit number occupies one grid square
f(1)=0, f(n+1)=f(n)+O(n+(-1)^n) where O(n) is the nth odd number, or 2n-1
example: f(2) = f(1)+O(3) = 0+5 = 5, F(3) = f(2)+O(2) = 5+3 = 8...