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 | 3 |
| 3 | 3 |
| 4 | 7 |
| 5 | 37 |
| 6 | 7 |
| 7 | 15 |
| 8 | 257 |
| 9 | 257 |
| 10 | 15 |
| 11 | 33 |
| 12 | 1915 |
| 13 | 5149 |
| 14 | 1915 |
| 15 | 33 |
| 16 | 73 |
| 17 | 14223 |
| 18 | 107047 |
| 19 | 107047 |
| 20 | 14223 |
| 21 | 73 |
| 22 | 161 |
| 23 | 105411 |
| 24 | 2245709 |
| 25 | 6363511 |
| 26 | 2245709 |
| 27 | 105411 |
| 28 | 161 |
| 29 | 355 |
| 30 | 781873 |
| 31 | 46996227 |
| 32 | 382995685 |
| 33 | 382995685 |
| 34 | 46996227 |
| 35 | 781873 |
| 36 | 355 |
| 37 | 783 |
| 38 | 5798587 |
| 39 | 983668985 |