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 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 5 |
| 7 | 10 |
| 8 | 21 |
| 9 | 43 |
| 10 | 97 |
| 11 | 215 |
| 12 | 503 |
| 13 | 1187 |
| 14 | 2876 |
| 15 | 7033 |
| 16 | 17510 |
| 17 | 43961 |
| 18 | 111664 |
| 19 | 285809 |
| 20 | 737632 |
| 21 | 1915993 |
| 22 | 5008652 |
| 23 | 13163785 |
| 24 | 34774873 |
| 25 | 92282214 |
| 26 | 245930746 |
| 27 | 657931603 |
| 28 | 1766481135 |
| 29 | 4758553683 |
| 30 | 12858286083 |
| 31 | 34844908142 |
| 32 | 94681272368 |