List questions from multinomial-coefficients | MathQA

Interpretation of multinomial coefficients in terms of choosing elements from a set?

Published on 06 Aug 2022 - 15:10

Maximum of $\frac{n!}{i!j!k!}$ under $i+j+k=n$

Published on 10 Aug 2022 - 18:25

Is there a parametric distribution family for natural-numbered random vectors $X=(X_1, X_2,...,X_N)$ with a simplex-like constraint

Published on 11 Aug 2022 - 2:43

Constrained multinomial theorem removing terms from sum

Published on 26 Mar 2026 - 21:25

Sum of products of binomial coefficient

Published on 24 Aug 2022 - 8:04

Number of terms in trinomial expansion

Published on 03 Sep 2022 - 14:07

I have the sequence: $1, 4, 10, 16, 19, 16, 10, 4, 1$. What is the formula to get the $i^{th}$ term of the sequence for $i=1,2,\dots,9$

Published on 26 Mar 2026 - 19:39

Alternate multinomial theorem for $\frac{d^n}{dx^n}\prod\limits_{k=1}^m f_k(x)$ without $\sum\limits_{k_1+\dots+k_m=n}$ nor Kronecker delta.

Published on 25 Mar 2026 - 17:42

Multinomial identity

Published on 26 Mar 2026 - 23:00

Combinatorial decomposition of summands in product

Published on 27 Mar 2026 - 1:45

Kronecker delta in a finite sum

Published on 25 Mar 2026 - 20:35

Expand and group like terms $(a_1 +a_2 + .... +a_m)^2$

Published on 30 Dec 2022 - 11:20