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 | 134067 |
| 2 | 1905564 |
| 3 | 6731644 |
| 4 | 30853588 |
| 5 | 77781820 |
| 6 | 224046148 |
| 7 | 814042660 |
| 8 | 1677408772 |
| 9 | 4196089300 |
| 10 | 8798157652 |
| 11 | 14524697380 |
| 12 | 24416409028 |
| 13 | 44015043748 |
| 14 | 81445473148 |
| 15 | 126644484460 |
| 16 | 206323651300 |
| 17 | 312259574092 |
| 18 | 421413266740 |