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 | 23 |
| 2 | 47 |
| 3 | 233 |
| 4 | 223 |
| 5 | 13367 |
| 6 | 431 |
| 7 | 2351 |
| 8 | 6361 |
| 9 | 179951 |
| 10 | 193707721 |
| 11 | 228479 |
| 12 | 439 |
| 13 | 2687 |
| 14 | 167 |
| 15 | 11447 |
| 16 | 7432339208719 |
| 17 | 2550183799 |
| 18 | 745988807 |
| 19 | 3391 |
| 20 | 263 |
| 21 | 32032215596496435569 |
| 22 | 5625767248687 |
| 23 | 86656268566282183151 |
| 24 | 18121 |
| 25 | 852133201 |
| 26 | 150287 |
| 27 | 2349023 |
| 28 | 730753 |
| 29 | 359 |
| 30 | 43441 |
| 31 | 383 |