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) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | 235 |
| 3 | 4178 |
| 4 | 76495 |
| 5 | 1426184 |
| 6 | 26922076 |
| 7 | 512838410 |
| 8 | 9837067951 |
| 9 | 189729498350 |
| 10 | 3675700225435 |
| 11 | 71474375851640 |
| 12 | 1394164222173700 |
| 13 | 27266825345422352 |
| 14 | 534510606516137920 |
| 15 | 10499123975453808698 |
| 16 | 206595710100771337327 |
| 17 | 4071693103719194746250 |