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 | 0 |
| 3 | 40 |
| 4 | 184 |
| 5 | 435 |
| 6 | 788 |
| 7 | 1243 |
| 8 | 1800 |
| 9 | 2459 |
| 10 | 3220 |
| 11 | 4083 |
| 12 | 5048 |
| 13 | 6115 |
| 14 | 7284 |
| 15 | 8555 |
| 16 | 9928 |
| 17 | 11403 |
| 18 | 12980 |
| 19 | 14659 |
| 20 | 16440 |
| 21 | 18323 |
| 22 | 20308 |
| 23 | 22395 |
| 24 | 24584 |
| 25 | 26875 |
| 26 | 29268 |
| 27 | 31763 |
| 28 | 34360 |
| 29 | 37059 |
| 30 | 39860 |
| 31 | 42763 |
| 32 | 45768 |
| 33 | 48875 |
| 34 | 52084 |
| 35 | 55395 |
| 36 | 58808 |
| 37 | 62323 |
| 38 | 65940 |
| 39 | 69659 |
| 40 | 73480 |