diff --git a/docs/2024-01-DE/slides/03-data-summary.html b/docs/2024-01-DE/slides/03-data-summary.html
index 83e26e2..f9e84b0 100644
--- a/docs/2024-01-DE/slides/03-data-summary.html
+++ b/docs/2024-01-DE/slides/03-data-summary.html
@@ -35,7 +35,7 @@ <h1 onclick='document.documentElement.requestFullscreen();' style='cursor: point
 $$
 \newcommand{\sub}{_}
 \newcommand{\set}[1]{\left\lbrace {#1} \right\rbrace}
-\newcommand{\nseq}[1]{{#1}\sub{1}, {#1}\sub{2}, \dotsc, {#1}\sub{n}}
+\newcommand{\nseq}[1]{ {#1}\sub{1}, {#1}\sub{2}, \dotsc, {#1}\sub{n} }
 $$
 </div>
 
diff --git a/docs/2024-01-DE/slides/03-data-summary.rmd b/docs/2024-01-DE/slides/03-data-summary.rmd
index 6f92ed0..09b1fc4 100644
--- a/docs/2024-01-DE/slides/03-data-summary.rmd
+++ b/docs/2024-01-DE/slides/03-data-summary.rmd
@@ -25,7 +25,7 @@ suppressWarnings(require(lattice))
 $$
 \newcommand{\sub}{_}
 \newcommand{\set}[1]{\left\lbrace {#1} \right\rbrace}
-\newcommand{\nseq}[1]{{#1}\sub{1}, {#1}\sub{2}, \dotsc, {#1}\sub{n}}
+\newcommand{\nseq}[1]{ {#1}\sub{1}, {#1}\sub{2}, \dotsc, {#1}\sub{n} }
 $$
 </div>