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 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 6 |
| 6 | 6 |
| 7 | 18 |
| 8 | 20 |
| 9 | 50 |
| 10 | 74 |
| 11 | 186 |
| 12 | 216 |
| 13 | 630 |
| 14 | 916 |
| 15 | 2002 |
| 16 | 3040 |
| 17 | 7710 |
| 18 | 10806 |
| 19 | 27594 |
| 20 | 40642 |
| 21 | 94658 |
| 22 | 158492 |
| 23 | 364722 |
| 24 | 516682 |
| 25 | 1333926 |
| 26 | 2180772 |
| 27 | 4770374 |
| 28 | 7845774 |
| 29 | 18512790 |
| 30 | 28706044 |
| 31 | 69273666 |
| 32 | 111116576 |
| 33 | 251853466 |
| 34 | 436650938 |
| 35 | 977895330 |