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 | 7 |
| 5 | 13 |
| 6 | 22 |
| 7 | 42 |
| 8 | 81 |
| 9 | 149 |
| 10 | 278 |
| 11 | 516 |
| 12 | 971 |
| 13 | 1812 |
| 14 | 3374 |
| 15 | 6297 |
| 16 | 11770 |
| 17 | 21970 |
| 18 | 41002 |
| 19 | 76523 |
| 20 | 142901 |
| 21 | 266779 |
| 22 | 497957 |
| 23 | 929563 |
| 24 | 1735418 |
| 25 | 3239698 |
| 26 | 6047738 |
| 27 | 11289791 |
| 28 | 21076118 |
| 29 | 39344992 |
| 30 | 73448769 |
| 31 | 137113953 |
| 32 | 255965109 |
| 33 | 477835991 |
| 34 | 892023121 |
| 35 | 1665227859 |