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 | 22 |
| 1 | 45 |
| 2 | 91 |
| 3 | 183 |
| 4 | 367 |
| 5 | 735 |
| 6 | 1471 |
| 7 | 2943 |
| 8 | 5887 |
| 9 | 11775 |
| 10 | 23551 |
| 11 | 47103 |
| 12 | 94207 |
| 13 | 188415 |
| 14 | 376831 |
| 15 | 753663 |
| 16 | 1507327 |
| 17 | 3014655 |
| 18 | 6029311 |
| 19 | 12058623 |
| 20 | 24117247 |
| 21 | 48234495 |
| 22 | 96468991 |
| 23 | 192937983 |
| 24 | 385875967 |
| 25 | 771751935 |
| 26 | 1543503871 |
| 27 | 3087007743 |
| 28 | 6174015487 |
| 29 | 12348030975 |
| 30 | 24696061951 |
| 31 | 49392123903 |
| 32 | 98784247807 |
| 33 | 197568495615 |
| 34 | 395136991231 |
| 35 | 790273982463 |
| 36 | 1580547964927 |