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 | 10 |
| 2 | 100 |
| 3 | 292 |
| 4 | 828 |
| 5 | 2190 |
| 6 | 5290 |
| 7 | 12292 |
| 8 | 27978 |
| 9 | 62574 |
| 10 | 136978 |
| 11 | 298386 |
| 12 | 642668 |
| 13 | 1375596 |
| 14 | 2932342 |
| 15 | 6217164 |
| 16 | 13153676 |
| 17 | 27743768 |
| 18 | 58404696 |
| 19 | 122773834 |
| 20 | 257696786 |
| 21 | 540439948 |
| 22 | 1132381262 |
| 23 | 2371176338 |
| 24 | 4962720854 |
| 25 | 10382009670 |
| 26 | 21712572508 |