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 | 5 |
| 2 | 13 |
| 3 | 41 |
| 4 | 61 |
| 5 | 181 |
| 6 | 313 |
| 7 | 421 |
| 8 | 1201 |
| 9 | 1741 |
| 10 | 1861 |
| 11 | 2521 |
| 12 | 3121 |
| 13 | 5101 |
| 14 | 7321 |
| 15 | 8581 |
| 16 | 9661 |
| 17 | 14281 |
| 18 | 16381 |
| 19 | 19801 |
| 20 | 36721 |
| 21 | 41761 |
| 22 | 60901 |
| 23 | 71821 |
| 24 | 83641 |
| 25 | 100801 |
| 26 | 106261 |
| 27 | 135721 |
| 28 | 139921 |
| 29 | 161881 |
| 30 | 163021 |
| 31 | 199081 |
| 32 | 205441 |
| 33 | 218461 |
| 34 | 273061 |
| 35 | 282001 |
| 36 | 337021 |
| 37 | 353641 |
| 38 | 388081 |
| 39 | 431521 |
| 40 | 491041 |
| 41 | 531481 |
| 42 | 539761 |
| 43 | 552301 |
| 44 | 571381 |