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 | 5 |
| 2 | 11 |
| 3 | 29 |
| 4 | 59 |
| 5 | 101 |
| 6 | 347 |
| 7 | 419 |
| 8 | 809 |
| 9 | 2549 |
| 10 | 6089 |
| 11 | 13679 |
| 12 | 18911 |
| 13 | 24917 |
| 14 | 62927 |
| 15 | 188831 |
| 16 | 688451 |
| 17 | 689459 |
| 18 | 851801 |
| 19 | 2870471 |
| 20 | 4871441 |
| 21 | 9925709 |
| 22 | 14658419 |
| 23 | 17384669 |
| 24 | 30754487 |
| 25 | 32825201 |
| 26 | 96896909 |
| 27 | 136286441 |
| 28 | 234970031 |
| 29 | 248644217 |
| 30 | 255953429 |