Links
[1] https://math.yale.edu/event/putnam-seminar-0
[2] https://math.yale.edu/event/putnam-seminar
[3] https://math.yale.edu/event/laplacian-matrices-graphs-algorithms-and-applications-0
[4] https://math.yale.edu/event/juggling-patterns-and-linear-independence
[5] https://math.yale.edu/event/putnam-practice-session
[6] https://math.yale.edu/event/kakeya-needle-problem
[7] https://math.yale.edu/event/math-club-organizational-meeting
[8] https://math.yale.edu/event/pells-equation-history-told-through-proofs