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 | 10 |
| 2 | 178 |
| 3 | 1098 |
| 4 | 4172 |
| 5 | 11962 |
| 6 | 28554 |
| 7 | 59910 |
| 8 | 114232 |
| 9 | 202314 |
| 10 | 337902 |
| 11 | 538054 |
| 12 | 823496 |
| 13 | 1218978 |
| 14 | 1753638 |
| 15 | 2461350 |
| 16 | 3381092 |
| 17 | 4557298 |
| 18 | 6040218 |
| 19 | 7886274 |
| 20 | 10158420 |
| 21 | 12926498 |
| 22 | 16267598 |
| 23 | 20266414 |
| 24 | 25015604 |
| 25 | 30616142 |
| 26 | 37177686 |
| 27 | 44818926 |
| 28 | 53667948 |