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 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 9 |
| 7 | 11 |
| 8 | 14 |
| 9 | 16 |
| 10 | 26 |
| 11 | 54 |
| 12 | 74 |
| 13 | 111 |
| 14 | 130 |
| 15 | 152 |
| 16 | 253 |
| 17 | 345 |
| 18 | 607 |
| 19 | 686 |
| 20 | 1590 |
| 21 | 2711 |
| 22 | 5462 |
| 23 | 7021 |
| 24 | 8681 |
| 25 | 11044 |
| 26 | 18132 |
| 27 | 24072 |
| 28 | 25211 |
| 29 | 44332 |
| 30 | 52792 |
| 31 | 85881 |