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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 10 |
| 6 | 20 |
| 7 | 37 |
| 8 | 76 |
| 9 | 152 |
| 10 | 320 |
| 11 | 672 |
| 12 | 1454 |
| 13 | 3154 |
| 14 | 6959 |
| 15 | 15439 |
| 16 | 34608 |
| 17 | 77988 |
| 18 | 176985 |
| 19 | 403510 |
| 20 | 924683 |
| 21 | 2127335 |
| 22 | 4913452 |
| 23 | 11385955 |
| 24 | 26468231 |
| 25 | 61700232 |
| 26 | 144206269 |
| 27 | 337837221 |
| 28 | 793213550 |
| 29 | 1866181155 |
| 30 | 4398867672 |
| 31 | 10387045476 |
| 32 | 24567374217 |
| 33 | 58196129468 |
| 34 | 138056734916 |