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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 7 |
| 4 | 10 |
| 5 | 25 |
| 6 | 68 |
| 7 | 111 |
| 8 | 208 |
| 9 | 435 |
| 10 | 1218 |
| 11 | 1773 |
| 12 | 3586 |
| 13 | 6077 |
| 14 | 12156 |
| 15 | 31961 |
| 16 | 47624 |
| 17 | 86825 |
| 18 | 151962 |
| 19 | 265525 |
| 20 | 469610 |
| 21 | 1242607 |
| 22 | 1750108 |
| 23 | 3217663 |
| 24 | 5263928 |
| 25 | 9205197 |
| 26 | 14713474 |
| 27 | 26440503 |
| 28 | 63610938 |
| 29 | 90877893 |
| 30 | 159360628 |
| 31 | 258871127 |
| 32 | 431309688 |
| 33 | 687140639 |
| 34 | 1134231986 |