Timeline for Important combinatorial and algebraic interpretations of the coefficients in the polynomial $[n]!_q = (1+q)(1+q+q^2) \ldots (1+q+\cdots + q^{n-1})$
Current License: CC BY-SA 4.0
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| when toggle format | what | by | license | comment | |
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| May 14, 2020 at 1:48 | comment | added | Richard Stanley | For an even simpler proof (in my opinion, at least), see Enumerative Combinatorics, vol. 1, second ed., Exercise 1.50(c). | |
| S Dec 28, 2019 at 18:28 | history | answered | Ira Gessel | CC BY-SA 4.0 | |
| S Dec 28, 2019 at 18:28 | history | made wiki | Post Made Community Wiki by Ira Gessel |