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 | 256 |
| 2 | 5864 |
| 3 | 41006 |
| 4 | 176893 |
| 5 | 594286 |
| 6 | 1718057 |
| 7 | 4500818 |
| 8 | 10981150 |
| 9 | 25334630 |
| 10 | 55772240 |
| 11 | 117841845 |
| 12 | 239976226 |
| 13 | 472531867 |
| 14 | 902107834 |
| 15 | 1673660678 |
| 16 | 3023882381 |
| 17 | 5330533450 |
| 18 | 9183978785 |
| 19 | 15489123731 |
| 20 | 25608363453 |
| 21 | 41559120445 |
| 22 | 66283141375 |