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 | 13 |
| 2 | 169 |
| 3 | 677 |
| 4 | 1835 |
| 5 | 4047 |
| 6 | 7837 |
| 7 | 13863 |
| 8 | 22931 |
| 9 | 36009 |
| 10 | 54241 |
| 11 | 78961 |
| 12 | 111707 |
| 13 | 154235 |
| 14 | 208533 |
| 15 | 276835 |
| 16 | 361635 |
| 17 | 465701 |
| 18 | 592089 |
| 19 | 744157 |
| 20 | 925579 |
| 21 | 1140359 |
| 22 | 1392845 |
| 23 | 1687743 |
| 24 | 2030131 |
| 25 | 2425473 |
| 26 | 2879633 |
| 27 | 3398889 |
| 28 | 3989947 |
| 29 | 4659955 |
| 30 | 5416517 |
| 31 | 6267707 |