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 | 661 |
| 2 | 1201 |
| 3 | 2281 |
| 4 | 2713 |
| 5 | 3181 |
| 6 | 4801 |
| 7 | 5413 |
| 8 | 8221 |
| 9 | 9013 |
| 10 | 12541 |
| 11 | 13513 |
| 12 | 17761 |
| 13 | 18913 |
| 14 | 20101 |
| 15 | 32413 |
| 16 | 33961 |
| 17 | 38821 |
| 18 | 51421 |
| 19 | 72481 |
| 20 | 91921 |
| 21 | 94513 |
| 22 | 108013 |
| 23 | 110821 |
| 24 | 134581 |
| 25 | 137713 |
| 26 | 153913 |
| 27 | 167521 |
| 28 | 211801 |
| 29 | 223681 |
| 30 | 265621 |
| 31 | 274441 |
| 32 | 335281 |
| 33 | 345181 |
| 34 | 365413 |
| 35 | 370561 |
| 36 | 440761 |
| 37 | 560641 |