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 | 1 |
| 4 | 6 |
| 5 | 8 |
| 6 | 19 |
| 7 | 43 |
| 8 | 90 |
| 9 | 167 |
| 10 | 339 |
| 11 | 722 |
| 12 | 1503 |
| 13 | 2987 |
| 14 | 5883 |
| 15 | 11820 |
| 16 | 24167 |
| 17 | 49348 |
| 18 | 99707 |
| 19 | 199626 |
| 20 | 398475 |
| 21 | 797457 |
| 22 | 1604029 |
| 23 | 3237867 |
| 24 | 6534327 |
| 25 | 13143278 |
| 26 | 26336266 |
| 27 | 52664325 |
| 28 | 105349525 |
| 29 | 211135006 |
| 30 | 423949168 |
| 31 | 851981311 |
| 32 | 1711365899 |
| 33 | 3433202397 |
| 34 | 6878160656 |
| 35 | 13768314357 |