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<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JS Number Pattern 50 - Try It</title>
</head>
<body>
  <h1>Rotated Number Sequence Pattern</h1>
  <p>Edit n and click Run.</p>
  <pre id="output"></pre>
  <script>
    const n = 5;
    let result = "";
    for (let i = 1; i <= n; i++) {
      let line = "";
      for (let j = i; j > 1; j--) line += j;
      for (let k = 1; k <= n + 1 - i; k++) line += k;
      result += line + "\n";
    }
    document.getElementById("output").textContent = result;
  </script>
</body>
</html>

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JavaScript Number Pattern 50 (Try It)