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 | 29 |
| 3 | 245 |
| 4 | 801 |
| 5 | 2737 |
| 6 | 4801 |
| 7 | 12265 |
| 8 | 19209 |
| 9 | 33513 |
| 10 | 49537 |
| 11 | 87641 |
| 12 | 101933 |
| 13 | 178413 |
| 14 | 220057 |
| 15 | 286297 |
| 16 | 379033 |
| 17 | 551601 |
| 18 | 606169 |
| 19 | 880217 |
| 20 | 951365 |
| 21 | 1208965 |
| 22 | 1507433 |
| 23 | 1947785 |
| 24 | 2002573 |
| 25 | 2624309 |
| 26 | 3055989 |
| 27 | 3550317 |
| 28 | 3954937 |
| 29 | 5068921 |
| 30 | 5062033 |
| 31 | 6669541 |
| 32 | 7081841 |
| 33 | 8143061 |
| 34 | 9364953 |
| 35 | 10296329 |
| 36 | 10918073 |
| 37 | 13772225 |
| 38 | 14842297 |
| 39 | 16312317 |