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 | 345 |
| 2 | 1645 |
| 3 | 6489 |
| 4 | 8041 |
| 5 | 23881 |
| 6 | 88473 |
| 7 | 115957 |
| 8 | 342637 |
| 9 | 3256261 |
| 10 | 4114285 |
| 11 | 4646101 |
| 12 | 5054221 |
| 13 | 13384681 |
| 14 | 17897737 |
| 15 | 20901553 |
| 16 | 23807821 |
| 17 | 42081409 |
| 18 | 64580041 |
| 19 | 65380921 |
| 20 | 70366153 |
| 21 | 82175857 |
| 22 | 110344621 |
| 23 | 137331565 |
| 24 | 164109901 |
| 25 | 286078081 |
| 26 | 331957897 |
| 27 | 366611617 |
| 28 | 367891717 |
| 29 | 489645157 |