Number theory
Additive combinatorics and diophantine equations (A. Skorobogatov)
Continued fractions and Stern-Brocot theory
Fermat's last theorem
Lagrange and number theory (Carlo Viola)
Number theory revival (Norman Wildberger)
Pari/gp
Partition numbers
The queen of mathematics (Raymond Flood)
Pari/gp
Tutorial 1
Tutorial 2
Tutorial 3
Tutorial 4