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 | 20 |
| 3 | 71 |
| 4 | 154 |
| 5 | 269 |
| 6 | 416 |
| 7 | 595 |
| 8 | 806 |
| 9 | 1049 |
| 10 | 1324 |
| 11 | 1631 |
| 12 | 1970 |
| 13 | 2341 |
| 14 | 2744 |
| 15 | 3179 |
| 16 | 3646 |
| 17 | 4145 |
| 18 | 4676 |
| 19 | 5239 |
| 20 | 5834 |
| 21 | 6461 |
| 22 | 7120 |
| 23 | 7811 |
| 24 | 8534 |
| 25 | 9289 |
| 26 | 10076 |
| 27 | 10895 |
| 28 | 11746 |
| 29 | 12629 |
| 30 | 13544 |
| 31 | 14491 |
| 32 | 15470 |
| 33 | 16481 |
| 34 | 17524 |
| 35 | 18599 |
| 36 | 19706 |
| 37 | 20845 |
| 38 | 22016 |
| 39 | 23219 |
| 40 | 24454 |