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 | 641 |
| 2 | 661 |
| 3 | 769 |
| 4 | 821 |
| 5 | 881 |
| 6 | 1109 |
| 7 | 1201 |
| 8 | 1301 |
| 9 | 1409 |
| 10 | 2069 |
| 11 | 2389 |
| 12 | 2741 |
| 13 | 3329 |
| 14 | 3541 |
| 15 | 3761 |
| 16 | 3989 |
| 17 | 4721 |
| 18 | 6101 |
| 19 | 6709 |
| 20 | 7349 |
| 21 | 7681 |
| 22 | 8369 |
| 23 | 9461 |
| 24 | 12289 |
| 25 | 14081 |
| 26 | 14549 |
| 27 | 16001 |
| 28 | 18049 |
| 29 | 19121 |
| 30 | 20789 |
| 31 | 25589 |
| 32 | 28181 |
| 33 | 31601 |
| 34 | 32309 |
| 35 | 33749 |
| 36 | 35221 |
| 37 | 35969 |
| 38 | 37489 |
| 39 | 38261 |
| 40 | 39041 |
| 41 | 39829 |