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 | 3 |
| 2 | 323 |
| 3 | 5183 |
| 4 | 777923 |
| 5 | 1327103 |
| 6 | 6718463 |
| 7 | 12446783 |
| 8 | 16402499 |
| 9 | 229159043 |
| 10 | 432972863 |
| 11 | 1214383103 |
| 12 | 2191925123 |
| 13 | 4787532863 |
| 14 | 6927565823 |
| 15 | 10809345023 |
| 16 | 12619826243 |
| 17 | 22218287363 |
| 18 | 31123310723 |
| 19 | 32399999999 |
| 20 | 42469790723 |
| 21 | 79101562499 |
| 22 | 131734154303 |
| 23 | 151291437443 |