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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 5 |
| 4 | 21 |
| 5 | 57 |
| 6 | 138 |
| 7 | 282 |
| 8 | 538 |
| 9 | 938 |
| 10 | 1563 |
| 11 | 2463 |
| 12 | 3759 |
| 13 | 5523 |
| 14 | 7924 |
| 15 | 11060 |
| 16 | 15156 |
| 17 | 20340 |
| 18 | 26901 |
| 19 | 35001 |
| 20 | 45001 |
| 21 | 57101 |
| 22 | 71742 |
| 23 | 89166 |
| 24 | 109902 |
| 25 | 134238 |
| 26 | 162799 |
| 27 | 195923 |
| 28 | 234339 |
| 29 | 278439 |
| 30 | 329064 |
| 31 | 386664 |
| 32 | 452200 |
| 33 | 526184 |
| 34 | 609705 |
| 35 | 703341 |