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 | 16 |
| 2 | 108 |
| 3 | 358 |
| 4 | 884 |
| 5 | 1928 |
| 6 | 3902 |
| 7 | 7490 |
| 8 | 13784 |
| 9 | 24467 |
| 10 | 42053 |
| 11 | 70195 |
| 12 | 114073 |
| 13 | 180875 |
| 14 | 280385 |
| 15 | 425693 |
| 16 | 634043 |
| 17 | 927836 |
| 18 | 1335806 |
| 19 | 1894388 |
| 20 | 2649298 |
| 21 | 3657346 |
| 22 | 4988504 |
| 23 | 6728252 |
| 24 | 8980226 |
| 25 | 11869193 |
| 26 | 15544379 |
| 27 | 20183177 |
| 28 | 25995263 |
| 29 | 33227149 |
| 30 | 42167203 |