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 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 9 |
| 6 | 11 |
| 7 | 23 |
| 8 | 25 |
| 9 | 27 |
| 10 | 31 |
| 11 | 81 |
| 12 | 83 |
| 13 | 97 |
| 14 | 103 |
| 15 | 115 |
| 16 | 121 |
| 17 | 125 |
| 18 | 127 |
| 19 | 243 |
| 20 | 419 |
| 21 | 431 |
| 22 | 509 |
| 23 | 515 |
| 24 | 529 |
| 25 | 563 |
| 26 | 575 |
| 27 | 625 |
| 28 | 631 |
| 29 | 661 |
| 30 | 691 |
| 31 | 709 |
| 32 | 729 |
| 33 | 961 |
| 34 | 1067 |
| 35 | 1331 |
| 36 | 1543 |
| 37 | 2095 |
| 38 | 2187 |
| 39 | 2369 |
| 40 | 2575 |
| 41 | 2645 |
| 42 | 2875 |
| 43 | 2897 |
| 44 | 3001 |
| 45 | 3125 |
| 46 | 3637 |
| 47 | 3691 |
| 48 | 3803 |
| 49 | 4091 |
| 50 | 4201 |
| 51 | 4637 |
| 52 | 4663 |