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 | 27 |
| 2 | 615 |
| 3 | 3843 |
| 4 | 14351 |
| 5 | 40363 |
| 6 | 94711 |
| 7 | 195859 |
| 8 | 368927 |
| 9 | 646715 |
| 10 | 1070727 |
| 11 | 1692195 |
| 12 | 2573103 |
| 13 | 3787211 |
| 14 | 5421079 |
| 15 | 7575091 |
| 16 | 10364479 |
| 17 | 13920347 |
| 18 | 18390695 |
| 19 | 23941443 |
| 20 | 30757455 |
| 21 | 39043563 |
| 22 | 49025591 |
| 23 | 60951379 |
| 24 | 75091807 |
| 25 | 91741819 |
| 26 | 111221447 |
| 27 | 133876835 |
| 28 | 160081263 |
| 29 | 190236171 |