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 | 7 |
| 2 | 31 |
| 3 | 105 |
| 4 | 300 |
| 5 | 756 |
| 6 | 1732 |
| 7 | 3676 |
| 8 | 7330 |
| 9 | 13870 |
| 10 | 25102 |
| 11 | 43714 |
| 12 | 73612 |
| 13 | 120340 |
| 14 | 191620 |
| 15 | 298012 |
| 16 | 453739 |
| 17 | 677677 |
| 18 | 994565 |
| 19 | 1436435 |
| 20 | 2044328 |
| 21 | 2870296 |
| 22 | 3979768 |
| 23 | 5454280 |
| 24 | 7394660 |
| 25 | 9924668 |
| 26 | 13195196 |
| 27 | 17389028 |
| 28 | 22726280 |
| 29 | 29470520 |
| 30 | 37935704 |
| 31 | 48493928 |
| 32 | 61584149 |