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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 7 |
| 3 | 18 |
| 4 | 47 |
| 5 | 110 |
| 6 | 258 |
| 7 | 568 |
| 8 | 1237 |
| 9 | 2600 |
| 10 | 5380 |
| 11 | 10870 |
| 12 | 21652 |
| 13 | 42350 |
| 14 | 81778 |
| 15 | 155676 |
| 16 | 292964 |
| 17 | 544846 |
| 18 | 1003078 |
| 19 | 1828128 |
| 20 | 3301952 |
| 21 | 5911740 |
| 22 | 10499385 |
| 23 | 18502582 |
| 24 | 32371011 |
| 25 | 56240816 |
| 26 | 97073055 |
| 27 | 166497412 |
| 28 | 283870383 |
| 29 | 481212656 |
| 30 | 811287037 |
| 31 | 1360575284 |
| 32 | 2270274785 |
| 33 | 3769835178 |
| 34 | 6230705170 |
| 35 | 10251665550 |
| 36 | 16794445441 |