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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JS Number Pattern 48 - Try It</title>
</head>
<body>
  <h1>Multiply-by-11 Series Pattern</h1>
  <p>Edit lines and click Run.</p>
  <pre id="output"></pre>

  <script>
    const lines = 5;
    let value = 1n;
    let result = "";

    for (let i = 1; i <= lines; i++) {
      result += String(value) + "\n";
      value *= 11n;
    }

    document.getElementById("output").textContent = result;
  </script>
</body>
</html>

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JavaScript Number Pattern 48 (Try It)