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 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 14 |
| 5 | 26 |
| 6 | 48 |
| 7 | 88 |
| 8 | 160 |
| 9 | 292 |
| 10 | 532 |
| 11 | 972 |
| 12 | 1768 |
| 13 | 3220 |
| 14 | 5866 |
| 15 | 10686 |
| 16 | 19454 |
| 17 | 35430 |
| 18 | 64528 |
| 19 | 117520 |
| 20 | 214004 |
| 21 | 389724 |
| 22 | 709730 |
| 23 | 1292496 |
| 24 | 2353758 |
| 25 | 4286442 |
| 26 | 7806048 |
| 27 | 14215620 |
| 28 | 25888034 |
| 29 | 47144704 |
| 30 | 85855230 |
| 31 | 156350996 |
| 32 | 284730756 |
| 33 | 518523184 |
| 34 | 944282620 |