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 | 136 |
| 2 | 3069 |
| 3 | 29221 |
| 4 | 169352 |
| 5 | 713260 |
| 6 | 2399000 |
| 7 | 6847916 |
| 8 | 17247435 |
| 9 | 39349946 |
| 10 | 82830804 |
| 11 | 163171880 |
| 12 | 303974701 |
| 13 | 539955055 |
| 14 | 920393391 |
| 15 | 1513595984 |
| 16 | 2411810686 |
| 17 | 3737466811 |
| 18 | 5649538780 |
| 19 | 8351938843 |
| 20 | 12101749148 |
| 21 | 17220184737 |
| 22 | 24102352508 |