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 | 1 |
| 1 | 9 |
| 2 | 1 |
| 3 | 99 |
| 4 | 18 |
| 5 | 1 |
| 6 | 1323 |
| 7 | 306 |
| 8 | 27 |
| 9 | 1 |
| 10 | 21036 |
| 11 | 5643 |
| 12 | 621 |
| 13 | 36 |
| 14 | 1 |
| 15 | 390012 |
| 16 | 115917 |
| 17 | 14580 |
| 18 | 1044 |
| 19 | 45 |
| 20 | 1 |
| 21 | 8287041 |
| 22 | 2657946 |
| 23 | 366129 |
| 24 | 29754 |
| 25 | 1575 |
| 26 | 54 |
| 27 | 1 |
| 28 | 198918840 |
| 29 | 67708113 |
| 30 | 9968067 |
| 31 | 882318 |
| 32 | 52785 |
| 33 | 2214 |
| 34 | 63 |
| 35 | 1 |
| 36 | 5329794042 |
| 37 | 1903562412 |
| 38 | 294952140 |