MATH 21 D "Vector Calculus".
Here are some classes that I particularly enjoy teaching because they are directly related with my research interests:
MATH 145 Combinatorics
MATH 146 "Algebraic Combinatorics''.
MATH 168 "Mathematical Optimization''.
MATH 115A "Theory of Numbers" .
MATH 115B "Theory of Numbers" .
MATH 165 "Math and Computers" .
MATH 245 "Enumerative Combinatorics" .
Every two years or so I try to teach a graduate class (as
MATH 280) "Discrete Optimization''.