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 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 7 |
| 8 | 11 |
| 9 | 19 |
| 10 | 32 |
| 11 | 56 |
| 12 | 102 |
| 13 | 180 |
| 14 | 331 |
| 15 | 596 |
| 16 | 1101 |
| 17 | 2015 |
| 18 | 3724 |
| 19 | 6904 |
| 20 | 12782 |
| 21 | 23923 |
| 22 | 44444 |
| 23 | 83755 |
| 24 | 156334 |
| 25 | 296084 |
| 26 | 555531 |
| 27 | 1056095 |
| 28 | 1991784 |
| 29 | 3797790 |
| 30 | 7197369 |
| 31 | 13757665 |
| 32 | 26186491 |
| 33 | 50164787 |
| 34 | 95847772 |
| 35 | 183980036 |
| 36 | 352670170 |
| 37 | 678215028 |
| 38 | 1303661995 |
| 39 | 2511483176 |
| 40 | 4838822931 |
| 41 | 9337575130 |
| 42 | 18025920971 |
| 43 | 34840575458 |
| 44 | 67371021603 |
| 45 | 130412367572 |