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 | 21 |
| 2 | 91 |
| 3 | 273 |
| 4 | 343 |
| 5 | 507 |
| 6 | 651 |
| 7 | 1333 |
| 8 | 4557 |
| 9 | 6321 |
| 10 | 6643 |
| 11 | 27391 |
| 12 | 36673 |
| 13 | 50851 |
| 14 | 65793 |
| 15 | 83811 |
| 16 | 105301 |
| 17 | 139503 |
| 18 | 190533 |
| 19 | 194923 |
| 20 | 217623 |
| 21 | 234741 |
| 22 | 391251 |
| 23 | 545383 |
| 24 | 1647373 |
| 25 | 1961401 |
| 26 | 2032051 |
| 27 | 2376223 |
| 28 | 4517751 |
| 29 | 6118203 |
| 30 | 6484663 |
| 31 | 11590621 |
| 32 | 13180531 |
| 33 | 14535157 |
| 34 | 20155611 |
| 35 | 28371603 |
| 36 | 35646871 |