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 | 3 |
| 2 | 10 |
| 3 | 25 |
| 4 | 62 |
| 5 | 136 |
| 6 | 293 |
| 7 | 590 |
| 8 | 1165 |
| 9 | 2205 |
| 10 | 4097 |
| 11 | 7391 |
| 12 | 13120 |
| 13 | 22780 |
| 14 | 38997 |
| 15 | 65613 |
| 16 | 109036 |
| 17 | 178660 |
| 18 | 289575 |
| 19 | 463842 |
| 20 | 735870 |
| 21 | 1155717 |
| 22 | 1799620 |
| 23 | 2777795 |
| 24 | 4254859 |
| 25 | 6467115 |
| 26 | 9761770 |
| 27 | 14633605 |
| 28 | 21799465 |
| 29 | 32273399 |
| 30 | 47506759 |
| 31 | 69537814 |
| 32 | 101252595 |
| 33 | 146675875 |
| 34 | 211451893 |