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  <title>JS Number Pattern 34 - Try It</title>
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  <h1>0-Based Increasing Sum Triangle</h1>
  <p>Edit <code>maxRow</code> and click Run.</p>
  <pre id=output></pre>
  <script>const maxRow=5;let result="";for(let t=0;t<=5;t++){let e="";for(let l=0;l<=t;l++)e+=t+l+(l===t?"":" ");result+=e+"\n"}document.getElementById("output").textContent=result</script>
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JavaScript Number Pattern 34 (Try It)