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 | 12 |
| 3 | 42 |
| 4 | 100 |
| 5 | 195 |
| 6 | 336 |
| 7 | 532 |
| 8 | 792 |
| 9 | 1125 |
| 10 | 1540 |
| 11 | 2046 |
| 12 | 2652 |
| 13 | 3367 |
| 14 | 4200 |
| 15 | 5160 |
| 16 | 6256 |
| 17 | 7497 |
| 18 | 8892 |
| 19 | 10450 |
| 20 | 12180 |
| 21 | 14091 |
| 22 | 16192 |
| 23 | 18492 |
| 24 | 21000 |
| 25 | 23725 |
| 26 | 26676 |
| 27 | 29862 |
| 28 | 33292 |
| 29 | 36975 |
| 30 | 40920 |
| 31 | 45136 |
| 32 | 49632 |
| 33 | 54417 |
| 34 | 59500 |
| 35 | 64890 |
| 36 | 70596 |
| 37 | 76627 |
| 38 | 82992 |
| 39 | 89700 |
| 40 | 96760 |
| 41 | 104181 |