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 | 4 |
| 2 | 7 |
| 3 | 15 |
| 4 | 20 |
| 5 | 31 |
| 6 | 37 |
| 7 | 56 |
| 8 | 70 |
| 9 | 95 |
| 10 | 113 |
| 11 | 162 |
| 12 | 193 |
| 13 | 264 |
| 14 | 310 |
| 15 | 415 |
| 16 | 486 |
| 17 | 640 |
| 18 | 741 |
| 19 | 950 |
| 20 | 1082 |
| 21 | 1374 |
| 22 | 1556 |
| 23 | 1940 |
| 24 | 2176 |
| 25 | 2673 |
| 26 | 2975 |
| 27 | 3611 |
| 28 | 3994 |
| 29 | 4793 |
| 30 | 5268 |
| 31 | 6249 |
| 32 | 6827 |
| 33 | 8028 |
| 34 | 8729 |