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 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 31 |
| 5 | 16 |
| 6 | 650 |
| 7 | 36 |
| 8 | 2633 |
| 9 | 548 |
| 10 | 6650 |
| 11 | 100 |
| 12 | 1782390 |
| 13 | 144 |
| 14 | 28754 |
| 15 | 38660 |
| 16 | 799583 |
| 17 | 256 |
| 18 | 24192515 |
| 19 | 324 |
| 20 | 47154588 |
| 21 | 160520 |
| 22 | 195002 |
| 23 | 484 |
| 24 | 78424725898 |
| 25 | 14224 |
| 26 | 391370 |
| 27 | 471124 |
| 28 | 387887498 |
| 29 | 784 |
| 30 | 500247950884 |
| 31 | 900 |
| 32 | 912432417 |
| 33 | 1049960 |
| 34 | 1187234 |
| 35 | 1338020 |
| 36 | 78818475807611 |
| 37 | 1296 |
| 38 | 1875818 |