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 | 4 |
| 5 | 8 |
| 6 | 16 |
| 7 | 36 |
| 8 | 72 |
| 9 | 144 |
| 10 | 288 |
| 11 | 592 |
| 12 | 1184 |
| 13 | 2384 |
| 14 | 4768 |
| 15 | 9608 |
| 16 | 19248 |
| 17 | 38496 |
| 18 | 76992 |
| 19 | 154272 |
| 20 | 308544 |
| 21 | 617152 |
| 22 | 1234448 |
| 23 | 2470080 |
| 24 | 4940160 |
| 25 | 9880608 |
| 26 | 19761216 |
| 27 | 39527200 |
| 28 | 79054400 |
| 29 | 158109088 |
| 30 | 316218176 |
| 31 | 632456976 |
| 32 | 1264913952 |
| 33 | 2529827904 |
| 34 | 5059658176 |
| 35 | 10119393344 |
| 36 | 20238787264 |