(50g) OEIS A137580: Number of Different Digits in N! - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Software Libraries ( /forum-10.html)+--- Forum: General Software Library ( /forum-13.html)+--- Thread: (50g) OEIS A137580: Number of Different Digits in N! ( /thread-9147.html) |

(50g) OEIS A137580: Number of Different Digits in N! - Gerald H - 09-23-2017 12:16 PM
For natural number N input the programme returns the number of different digits in N!. For info see https://oeis.org/A137580 You may note that for N > 41 the programme returns 10 - this result is based on a heuristic proof of that fact. The proof is what I would call a 21st century proof &, while not satisfying those still entrenched in the 20th century, is more than adequate for moderns. However, as moderns see everything open to revision, should a counter-proof appear I would amend the programme. Code: `::` |