diff --git a/README.md b/README.md
index 745e78b..13502cb 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ Let be $S_n = {\sum}^{n}_{i=1} a_i$ a sequence of partial sums. This repository
   - **u-variant**: $g(n) = n a_n$;
   - **v-variant**: $g(n) = a_n a_{n+1} / (a_{n+1} - a_n)$.
  
-  Then, $T\_n = \frac{M\_n^{(0)}}{N\_n^{(0)}}$.
+  Then, $T\_n = \frac{M\_n^{(1)}}{N\_n^{(1)}}$.
 
 
 ## Installation