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) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 2 |
| 8 | 6 |
| 9 | 8 |
| 10 | 18 |
| 11 | 30 |
| 12 | 67 |
| 13 | 127 |
| 14 | 275 |
| 15 | 551 |
| 16 | 1192 |
| 17 | 2507 |
| 18 | 5475 |
| 19 | 11820 |
| 20 | 26007 |
| 21 | 57077 |
| 22 | 126686 |
| 23 | 281625 |
| 24 | 630660 |
| 25 | 1416116 |
| 26 | 3195784 |
| 27 | 7232624 |
| 28 | 16430563 |
| 29 | 37429146 |
| 30 | 85528079 |
| 31 | 195940960 |
| 32 | 450074270 |
| 33 | 1036226173 |
| 34 | 2391193488 |
| 35 | 5529420585 |