Formula:8484

Digital Library of Mathematical Functions ID 26.4.E6

${\displaystyle{\displaystyle M_{1}=\begin{pmatrix}n\\ \overbrace{1,\ldots,1}^{a_{1}},\ldots,\overbrace{n,\ldots,n}^{a_{n}}\end{pmatrix}=\frac{n!}{(1!)^{a_{1}}(2!)^{a_{2}}\cdots(n!)^{a_{n}}}.}}$

Symbols List

• ${\displaystyle{\displaystyle!}}$:
• ${\displaystyle{\displaystyle n}}$: nonnegative integer
• ${\displaystyle{\displaystyle a_{n}}}$: nonnegative integers
• ${\displaystyle{\displaystyle M_{1}}}$: multinomial coefficient
 

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