Data update

Task/Pancake-numbers/C-sharp/pancake-numbers.cs

@@ -0,0 +1,31 @@
+using System;
+
+public class Pancake
+{
+    private static int pancake(int n)
+    {
+        int gap = 2;
+        int sum = 2;
+        int adj = -1;
+        while (sum < n)
+        {
+            adj++;
+            gap = 2 * gap - 1;
+            sum += gap;
+        }
+        return n + adj;
+    }
+
+    public static void Main(string[] args)
+    {
+        for (int i = 0; i < 4; i++)
+        {
+            for (int j = 1; j < 6; j++)
+            {
+                int n = 5 * i + j;
+                Console.Write($"p({n,2}) = {pancake(n),2}  ");
+            }
+            Console.WriteLine();
+        }
+    }
+}