This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 3 | 35205 |
| 4 | 1165194 |
| 5 | 34846271 |
| 6 | 995818716 |
| 7 | 27888940001 |
| 8 | 773821636750 |
| 9 | 21378607696815 |
| 10 | 589724385779004 |
| 11 | 16270311004670729 |
| 12 | 449476421435825046 |
| 13 | 12442365158796491483 |
| 14 | 345293706994488530008 |
| 15 | 9609116953522118190009 |
| 16 | 268189777386676703675238 |
| 17 | 7507073356371047897526119 |
| 18 | 210735605847160867677182616 |