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 | 1 |
| 2 | 15 |
| 3 | 60 |
| 4 | 154 |
| 5 | 315 |
| 6 | 561 |
| 7 | 910 |
| 8 | 1380 |
| 9 | 1989 |
| 10 | 2755 |
| 11 | 3696 |
| 12 | 4830 |
| 13 | 6175 |
| 14 | 7749 |
| 15 | 9570 |
| 16 | 11656 |
| 17 | 14025 |
| 18 | 16695 |
| 19 | 19684 |
| 20 | 23010 |
| 21 | 26691 |
| 22 | 30745 |
| 23 | 35190 |
| 24 | 40044 |
| 25 | 45325 |
| 26 | 51051 |
| 27 | 57240 |
| 28 | 63910 |
| 29 | 71079 |
| 30 | 78765 |
| 31 | 86986 |
| 32 | 95760 |
| 33 | 105105 |
| 34 | 115039 |
| 35 | 125580 |
| 36 | 136746 |