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 | 15 |
| 2 | 62 |
| 3 | 141 |
| 4 | 252 |
| 5 | 395 |
| 6 | 570 |
| 7 | 777 |
| 8 | 1016 |
| 9 | 1287 |
| 10 | 1590 |
| 11 | 1925 |
| 12 | 2292 |
| 13 | 2691 |
| 14 | 3122 |
| 15 | 3585 |
| 16 | 4080 |
| 17 | 4607 |
| 18 | 5166 |
| 19 | 5757 |
| 20 | 6380 |
| 21 | 7035 |
| 22 | 7722 |
| 23 | 8441 |
| 24 | 9192 |
| 25 | 9975 |
| 26 | 10790 |
| 27 | 11637 |
| 28 | 12516 |
| 29 | 13427 |
| 30 | 14370 |
| 31 | 15345 |
| 32 | 16352 |
| 33 | 17391 |
| 34 | 18462 |
| 35 | 19565 |
| 36 | 20700 |
| 37 | 21867 |
| 38 | 23066 |
| 39 | 24297 |
| 40 | 25560 |