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) |
|---|---|
| 1 | 1 |
| 2 | 23 |
| 3 | 322 |
| 4 | 495 |
| 5 | 3407 |
| 6 | 8113 |
| 7 | 28893 |
| 8 | 139708 |
| 9 | 716182 |
| 10 | 2497092 |
| 11 | 5130198 |
| 12 | 5761777 |
| 13 | 7315173 |
| 14 | 13194622 |
| 15 | 145995245 |
| 16 | 201544467 |
| 17 | 417649822 |
| 18 | 566513637 |
| 19 | 833667068 |
| 20 | 2266818768 |
| 21 | 4710228962 |
| 22 | 5186737183 |
| 23 | 5192311957 |
| 24 | 7454170028 |
| 25 | 9853412390 |
| 26 | 11817808908 |