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 | 83 |
| 2 | 373 |
| 3 | 1543 |
| 4 | 2393 |
| 5 | 4723 |
| 6 | 10453 |
| 7 | 0 |
| 8 | 24953 |
| 9 | 35323 |
| 10 | 0 |
| 11 | 56383 |
| 12 | 98017 |
| 13 | 0 |
| 14 | 122701 |
| 15 | 238879 |
| 16 | 0 |
| 17 | 263723 |
| 18 | 318181 |
| 19 | 0 |
| 20 | 486617 |
| 21 | 816547 |
| 22 | 0 |
| 23 | 874487 |
| 24 | 817561 |
| 25 | 0 |
| 26 | 1130957 |
| 27 | 1203343 |
| 28 | 0 |
| 29 | 3110867 |
| 30 | 2451637 |
| 31 | 1789391 |
| 32 | 1987849 |
| 33 | 2331379 |
| 34 | 0 |
| 35 | 2706679 |
| 36 | 3124129 |
| 37 | 0 |
| 38 | 4260437 |
| 39 | 4446319 |
| 40 | 0 |