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 | 0 |
| 4 | 23 |
| 5 | 37 |
| 6 | 100 |
| 7 | 67 |
| 8 | 348 |
| 9 | 0 |
| 10 | 371 |
| 11 | 0 |
| 12 | 660 |
| 13 | 0 |
| 14 | 0 |
| 15 | 434 |
| 16 | 233 |
| 17 | 771 |
| 18 | 277 |
| 19 | 600 |
| 20 | 985 |
| 21 | 3810 |
| 22 | 0 |
| 23 | 1788 |
| 24 | 3435 |
| 25 | 2208 |
| 26 | 1757 |
| 27 | 1220 |
| 28 | 631 |
| 29 | 1300 |
| 30 | 13190 |
| 31 | 0 |
| 32 | 0 |
| 33 | 1692 |
| 34 | 1740 |
| 35 | 16239 |
| 36 | 0 |
| 37 | 1039 |
| 38 | 0 |
| 39 | 2156 |
| 40 | 6678 |
| 41 | 10749 |
| 42 | 3745 |
| 43 | 1283 |
| 44 | 1297 |
| 45 | 1307 |
| 46 | 11040 |
| 47 | 4319 |
| 48 | 2930 |
| 49 | 0 |
| 50 | 23259 |
| 51 | 1613 |
| 52 | 6584 |