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 | 11 |
| 2 | 121 |
| 3 | 1331 |
| 4 | 4641 |
| 5 | 1051 |
| 6 | 1561 |
| 7 | 7171 |
| 8 | 8881 |
| 9 | 7691 |
| 10 | 4601 |
| 11 | 611 |
| 12 | 6721 |
| 13 | 3931 |
| 14 | 3241 |
| 15 | 5651 |
| 16 | 2161 |
| 17 | 3771 |
| 18 | 1481 |
| 19 | 6291 |
| 20 | 9201 |
| 21 | 1211 |
| 22 | 3321 |
| 23 | 6531 |
| 24 | 1841 |
| 25 | 251 |
| 26 | 2761 |
| 27 | 371 |
| 28 | 4081 |
| 29 | 4891 |
| 30 | 3801 |
| 31 | 1811 |
| 32 | 9921 |
| 33 | 9131 |
| 34 | 441 |
| 35 | 4851 |
| 36 | 3361 |
| 37 | 6971 |
| 38 | 6681 |
| 39 | 3491 |
| 40 | 8401 |
| 41 | 2411 |
| 42 | 6521 |
| 43 | 1731 |
| 44 | 9041 |
| 45 | 9451 |
| 46 | 3961 |
| 47 | 3571 |
| 48 | 9281 |
| 49 | 2091 |
| 50 | 3001 |
| 51 | 3011 |
| 52 | 3121 |
| 53 | 4331 |
| 54 | 7641 |