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 | 1 |
| 2 | 71 |
| 3 | 449 |
| 4 | 559 |
| 5 | 631 |
| 6 | 881 |
| 7 | 1009 |
| 8 | 1079 |
| 9 | 1441 |
| 10 | 1511 |
| 11 | 1639 |
| 12 | 1889 |
| 13 | 1961 |
| 14 | 2071 |
| 15 | 2449 |
| 16 | 2519 |
| 17 | 2521 |
| 18 | 2591 |
| 19 | 2969 |
| 20 | 3079 |
| 21 | 3151 |
| 22 | 3401 |
| 23 | 3529 |
| 24 | 3599 |
| 25 | 3961 |
| 26 | 4031 |
| 27 | 4159 |
| 28 | 4409 |
| 29 | 4481 |
| 30 | 4591 |
| 31 | 4969 |
| 32 | 5039 |
| 33 | 5041 |
| 34 | 5111 |
| 35 | 5489 |
| 36 | 5599 |
| 37 | 5671 |
| 38 | 5921 |
| 39 | 6049 |
| 40 | 6119 |
| 41 | 6481 |
| 42 | 6551 |
| 43 | 6679 |