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 | 35 |
| 2 | 221 |
| 3 | 1517 |
| 4 | 60491 |
| 5 | 34933 |
| 6 | 189029 |
| 7 | 777923 |
| 8 | 182293 |
| 9 | 11618977 |
| 10 | 58076041 |
| 11 | 268926877 |
| 12 | 1047880741 |
| 13 | 342323563 |
| 14 | 447110449 |
| 15 | 2987821321 |
| 16 | 11951066641 |
| 17 | 19719180049 |
| 18 | 10178985781 |
| 19 | 249381206761 |
| 20 | 30512751277 |
| 21 | 190703385391 |
| 22 | 128931982141 |