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 | 3 |
| 4 | 4 |
| 5 | 8 |
| 6 | 18 |
| 7 | 33 |
| 8 | 65 |
| 9 | 127 |
| 10 | 264 |
| 11 | 515 |
| 12 | 1037 |
| 13 | 2052 |
| 14 | 4103 |
| 15 | 8217 |
| 16 | 16408 |
| 17 | 32811 |
| 18 | 65590 |
| 19 | 131127 |
| 20 | 262112 |
| 21 | 524409 |
| 22 | 1048474 |
| 23 | 2097319 |
| 24 | 4194250 |
| 25 | 8389414 |
| 26 | 16778024 |
| 27 | 33557921 |
| 28 | 67116113 |
| 29 | 134235473 |
| 30 | 268471790 |
| 31 | 536948820 |
| 32 | 1073893571 |
| 33 | 2147779943 |
| 34 | 4295515305 |
| 35 | 8590928746 |