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 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 8 |
| 8 | 17 |
| 9 | 54 |
| 10 | 175 |
| 11 | 506 |
| 12 | 1299 |
| 13 | 3017 |
| 14 | 6465 |
| 15 | 13021 |
| 16 | 25142 |
| 17 | 47651 |
| 18 | 91104 |
| 19 | 180254 |
| 20 | 374077 |
| 21 | 810381 |
| 22 | 1800140 |
| 23 | 4019204 |
| 24 | 8888489 |
| 25 | 19322901 |
| 26 | 41223071 |
| 27 | 86520282 |
| 28 | 179574728 |
| 29 | 370946309 |
| 30 | 767426451 |
| 31 | 1597653852 |
| 32 | 3354537225 |
| 33 | 7101005320 |
| 34 | 15118658953 |