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Number Sequence Generator

Generate arithmetic, geometric, or Fibonacci-like number sequences.

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About the Number Sequence Generator

Generate arithmetic sequences (constant difference), geometric sequences (constant ratio), or Fibonacci-style sequences from a custom seed, with an adjustable term count.

Examples

Fibonacci, 10 terms

0, 1, 10 terms

Output

0, 1, 1, 2, 3, 5, 8, 13, 21, 34

Keyboard shortcuts

  • Copy the main outputCtrl / ⌘ + Shift + C
  • Download the resultCtrl / ⌘ + S
  • Share this toolCtrl / ⌘ + Shift + S
  • Reset the inputsAlt + R
  • Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-07 · Runs entirely in your browser