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 | 101 |
| 2 | 139 |
| 3 | 227 |
| 4 | 419 |
| 5 | 431 |
| 6 | 883 |
| 7 | 1021 |
| 8 | 1231 |
| 9 | 1303 |
| 10 | 1433 |
| 11 | 1447 |
| 12 | 1543 |
| 13 | 1583 |
| 14 | 1621 |
| 15 | 1721 |
| 16 | 1993 |
| 17 | 2243 |
| 18 | 2251 |
| 19 | 2351 |
| 20 | 2531 |
| 21 | 2539 |
| 22 | 2591 |
| 23 | 2693 |
| 24 | 2707 |
| 25 | 2713 |
| 26 | 2753 |
| 27 | 3359 |
| 28 | 3461 |
| 29 | 3541 |
| 30 | 3911 |
| 31 | 4091 |
| 32 | 4153 |
| 33 | 4423 |
| 34 | 4447 |
| 35 | 5011 |
| 36 | 5233 |
| 37 | 5527 |
| 38 | 5869 |
| 39 | 6029 |
| 40 | 6091 |
| 41 | 6469 |
| 42 | 6481 |
| 43 | 6569 |