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 | 181 |
| 2 | 13421 |
| 3 | 4831 |
| 4 | 25261 |
| 5 | 95651 |
| 6 | 43331 |
| 7 | 175141 |
| 8 | 1060781 |
| 9 | 404851 |
| 10 | 1648081 |
| 11 | 2597981 |
| 12 | 6085441 |
| 13 | 22151281 |
| 14 | 10270451 |
| 15 | 25180321 |
| 16 | 79817581 |
| 17 | 84549821 |
| 18 | 135045091 |
| 19 | 306099181 |
| 20 | 529811591 |
| 21 | 164710681 |
| 22 | 707429491 |
| 23 | 965524181 |
| 24 | 391995431 |
| 25 | 428045491 |
| 26 | 1516828721 |
| 27 | 4272226951 |
| 28 | 2337682591 |