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 | 9 |
| 2 | 44 |
| 3 | 157 |
| 4 | 458 |
| 5 | 1158 |
| 6 | 2629 |
| 7 | 5487 |
| 8 | 10703 |
| 9 | 19746 |
| 10 | 34764 |
| 11 | 58808 |
| 12 | 96104 |
| 13 | 152379 |
| 14 | 235247 |
| 15 | 354661 |
| 16 | 523436 |
| 17 | 757850 |
| 18 | 1078327 |
| 19 | 1510207 |
| 20 | 2084608 |
| 21 | 2839386 |
| 22 | 3820199 |
| 23 | 5081680 |
| 24 | 6688726 |
| 25 | 8717906 |
| 26 | 11258994 |
| 27 | 14416631 |
| 28 | 18312124 |
| 29 | 23085388 |
| 30 | 28897036 |
| 31 | 35930623 |
| 32 | 44395047 |
| 33 | 54527114 |
| 34 | 66594270 |
| 35 | 80897509 |
| 36 | 97774461 |
| 37 | 117602666 |
| 38 | 140803039 |
| 39 | 167843531 |