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34:31 Applying the Sieve
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Classroom Contents
Meet the Stirling Numbers of the Second Kind
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- 1 0:00 Intro
- 2 2:24 Meet the Stirlings
- 3 4:41 Basic Identities
- 4 6:40 n at least 2
- 5 7:48 4 subset 2
- 6 9:06 When k=2
- 7 10:09 The Recurrence
- 8 12:35 The Triangle
- 9 14:30 Counting Surjections
- 10 17:34 An hn,k Surprise
- 11 20:03 Proving a Spooky Claim
- 12 23:00 Induction Basis Step
- 13 25:40 Induction Step
- 14 27:23 General Formula
- 15 32:24 Sieve Example
- 16 34:31 Applying the Sieve
- 17 37:16 THE FORMULA!!!
- 18 39:22 Conclusion
