A356670 a(n) is the number of correct decimal digits of Pi obtained from the fraction A355622(n)/A355623(n).
0, 2, 3, 2, 4, 4, 7, 8, 8, 10, 10, 11, 11, 14, 14, 15, 16, 18, 18, 18, 19, 20, 22
Offset: 1
Examples
a(9) = 8 since A355622(9)/A355623(9) = 422334431/134433224 = 3.1415926690860... matches the first 8 digits of Pi: 3.1415926535897...
Extensions
a(19)-a(22) from Stefano Spezia, Oct 13 2022