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 | 0 |
| 2 | 4 |
| 3 | 16 |
| 4 | 38 |
| 5 | 74 |
| 6 | 128 |
| 7 | 204 |
| 8 | 306 |
| 9 | 438 |
| 10 | 604 |
| 11 | 808 |
| 12 | 1054 |
| 13 | 1346 |
| 14 | 1688 |
| 15 | 2084 |
| 16 | 2538 |
| 17 | 3054 |
| 18 | 3636 |
| 19 | 4288 |
| 20 | 5014 |
| 21 | 5818 |
| 22 | 6704 |
| 23 | 7676 |
| 24 | 8738 |
| 25 | 9894 |
| 26 | 11148 |
| 27 | 12504 |
| 28 | 13966 |
| 29 | 15538 |
| 30 | 17224 |
| 31 | 19028 |
| 32 | 20954 |
| 33 | 23006 |
| 34 | 25188 |
| 35 | 27504 |
| 36 | 29958 |
| 37 | 32554 |
| 38 | 35296 |
| 39 | 38188 |
| 40 | 41234 |
| 41 | 44438 |