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 | 325 |
| 2 | 337 |
| 3 | 358 |
| 4 | 400 |
| 5 | 478 |
| 6 | 634 |
| 7 | 934 |
| 8 | 1534 |
| 9 | 2710 |
| 10 | 5062 |
| 11 | 9718 |
| 12 | 19030 |
| 13 | 37558 |
| 14 | 74614 |
| 15 | 148534 |
| 16 | 296374 |
| 17 | 591670 |
| 18 | 1182262 |
| 19 | 2362678 |
| 20 | 4723510 |
| 21 | 9443638 |
| 22 | 18883894 |
| 23 | 37761334 |
| 24 | 75516214 |
| 25 | 151019830 |
| 26 | 302027062 |
| 27 | 604029238 |
| 28 | 1208033590 |
| 29 | 2416017718 |
| 30 | 4831985974 |