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 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 32 |
| 7 | 44 |
| 8 | 72 |
| 9 | 128 |
| 10 | 220 |
| 11 | 380 |
| 12 | 620 |
| 13 | 1232 |
| 14 | 2400 |
| 15 | 3988 |
| 16 | 7008 |
| 17 | 14260 |
| 18 | 25512 |
| 19 | 50944 |
| 20 | 105560 |
| 21 | 197880 |
| 22 | 381432 |
| 23 | 785984 |
| 24 | 1443992 |
| 25 | 2981200 |
| 26 | 6623144 |
| 27 | 13044340 |
| 28 | 26020924 |
| 29 | 55781760 |
| 30 | 108592260 |
| 31 | 231819360 |
| 32 | 526660160 |
| 33 | 1071224176 |
| 34 | 2231977656 |
| 35 | 4950184948 |
| 36 | 10009562624 |