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 | 1 |
| 2 | 924 |
| 3 | 8989 |
| 4 | 37270 |
| 5 | 145233 |
| 6 | 525796 |
| 7 | 1605490 |
| 8 | 4136952 |
| 9 | 9435413 |
| 10 | 19632414 |
| 11 | 37957424 |
| 12 | 69050898 |
| 13 | 119351315 |
| 14 | 197524064 |
| 15 | 314935542 |
| 16 | 486171662 |
| 17 | 729604121 |
| 18 | 1068003424 |
| 19 | 1529198580 |
| 20 | 2146783422 |
| 21 | 2960869583 |
| 22 | 4018886128 |
| 23 | 5376425842 |