diff --git a/javascript/2579-count-total-number-of-colored-cells.js b/javascript/2579-count-total-number-of-colored-cells.js
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+++ b/javascript/2579-count-total-number-of-colored-cells.js
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+/**
+ * Brute Force | Math
+ * Time O(n) | Space O(1)
+ * https://leetcode.com/problems/count-total-number-of-colored-cells
+ * @param {number} n
+ * @return {number}
+ */
+var coloredCells = function(n) {
+
+    let total = 1;
+    n--;
+    while (n) {
+        total += 4*n;
+        n--;
+    }
+    return total;
+};