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 | 1 |
| 3 | 3 |
| 4 | 3 |
| 5 | 6 |
| 6 | 10 |
| 7 | 27 |
| 8 | 41 |
| 9 | 98 |
| 10 | 148 |
| 11 | 325 |
| 12 | 518 |
| 13 | 1279 |
| 14 | 2181 |
| 15 | 4981 |
| 16 | 8393 |
| 17 | 17730 |
| 18 | 28938 |
| 19 | 67290 |
| 20 | 120550 |
| 21 | 267894 |
| 22 | 469928 |
| 23 | 998433 |
| 24 | 1725367 |
| 25 | 3719207 |
| 26 | 6830683 |
| 27 | 15021379 |
| 28 | 27155069 |
| 29 | 57664535 |
| 30 | 102865259 |