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 | 645 |
| 2 | 4369 |
| 3 | 13747 |
| 4 | 15709 |
| 5 | 88357 |
| 6 | 157641 |
| 7 | 642001 |
| 8 | 656601 |
| 9 | 1507963 |
| 10 | 2269093 |
| 11 | 2313697 |
| 12 | 4101637 |
| 13 | 7428421 |
| 14 | 7429117 |
| 15 | 8388607 |
| 16 | 22669501 |
| 17 | 26296401 |
| 18 | 27218269 |
| 19 | 27336673 |
| 20 | 28011001 |
| 21 | 32701297 |
| 22 | 34487601 |
| 23 | 36507801 |
| 24 | 37167361 |
| 25 | 47903701 |
| 26 | 54215161 |
| 27 | 71804161 |
| 28 | 72498253 |
| 29 | 74411131 |
| 30 | 82279741 |
| 31 | 86438857 |
| 32 | 86530621 |
| 33 | 93614521 |
| 34 | 96135601 |
| 35 | 97863529 |