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 | 17 |
| 3 | 83 |
| 4 | 241 |
| 5 | 509 |
| 6 | 877 |
| 7 | 1433 |
| 8 | 2063 |
| 9 | 2897 |
| 10 | 3911 |
| 11 | 4943 |
| 12 | 6353 |
| 13 | 8011 |
| 14 | 9661 |
| 15 | 11909 |
| 16 | 13693 |
| 17 | 16141 |
| 18 | 18787 |
| 19 | 21727 |
| 20 | 24781 |
| 21 | 28307 |
| 22 | 32261 |
| 23 | 35801 |
| 24 | 40093 |
| 25 | 44621 |
| 26 | 49139 |
| 27 | 54251 |
| 28 | 59417 |
| 29 | 64853 |
| 30 | 70621 |
| 31 | 77047 |
| 32 | 83617 |
| 33 | 90203 |
| 34 | 97039 |
| 35 | 103991 |
| 36 | 112097 |
| 37 | 120223 |
| 38 | 128683 |
| 39 | 136813 |
| 40 | 145903 |