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 | 1 |
| 2 | 199981 |
| 3 | 199982 |
| 4 | 199983 |
| 5 | 199984 |
| 6 | 199985 |
| 7 | 199986 |
| 8 | 199987 |
| 9 | 199988 |
| 10 | 199989 |
| 11 | 199990 |
| 12 | 199991 |
| 13 | 200001 |
| 14 | 1599981 |
| 15 | 1599982 |
| 16 | 1599983 |
| 17 | 1599984 |
| 18 | 1599985 |
| 19 | 1599986 |
| 20 | 1599987 |
| 21 | 1599988 |
| 22 | 1599989 |
| 23 | 1599990 |
| 24 | 1599991 |
| 25 | 2600001 |
| 26 | 13199998 |
| 27 | 13199999 |
| 28 | 28263827 |
| 29 | 28263828 |
| 30 | 35000001 |