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 | 1481 |
| 2 | 21011 |
| 3 | 22271 |
| 4 | 55331 |
| 5 | 144161 |
| 6 | 165701 |
| 7 | 166841 |
| 8 | 195731 |
| 9 | 201821 |
| 10 | 225341 |
| 11 | 247601 |
| 12 | 268811 |
| 13 | 326141 |
| 14 | 347981 |
| 15 | 361211 |
| 16 | 397751 |
| 17 | 465161 |
| 18 | 518801 |
| 19 | 536441 |
| 20 | 633461 |
| 21 | 633791 |
| 22 | 661091 |
| 23 | 768191 |
| 24 | 795791 |
| 25 | 829721 |
| 26 | 857951 |
| 27 | 876011 |
| 28 | 958541 |
| 29 | 1008851 |