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 | 971 |
| 3 | 54709 |
| 4 | 73907 |
| 5 | 84991 |
| 6 | 124771 |
| 7 | 287179 |
| 8 | 404851 |
| 9 | 511591 |
| 10 | 728537 |
| 11 | 4095059 |
| 12 | 5638691 |
| 13 | 6433747 |
| 14 | 6857849 |
| 15 | 10646627 |
| 16 | 11238001 |
| 17 | 11850913 |
| 18 | 12811423 |
| 19 | 13479779 |
| 20 | 13822489 |
| 21 | 14170957 |
| 22 | 16775597 |
| 23 | 17574343 |
| 24 | 19681267 |
| 25 | 20121901 |
| 26 | 21950189 |
| 27 | 26461619 |
| 28 | 39999391 |
| 29 | 49025423 |
| 30 | 49833529 |