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 | 12 |
| 3 | 40 |
| 4 | 121 |
| 5 | 207 |
| 6 | 473 |
| 7 | 649 |
| 8 | 1142 |
| 9 | 1611 |
| 10 | 2401 |
| 11 | 2853 |
| 12 | 4647 |
| 13 | 5285 |
| 14 | 6879 |
| 15 | 8759 |
| 16 | 11452 |
| 17 | 12558 |
| 18 | 16739 |
| 19 | 18127 |
| 20 | 23353 |
| 21 | 27129 |
| 22 | 31171 |
| 23 | 33219 |
| 24 | 43573 |
| 25 | 47524 |
| 26 | 53210 |
| 27 | 59538 |
| 28 | 69996 |
| 29 | 73274 |
| 30 | 89694 |
| 31 | 93446 |
| 32 | 107195 |
| 33 | 116731 |
| 34 | 126545 |
| 35 | 137505 |
| 36 | 164580 |
| 37 | 169946 |
| 38 | 182244 |
| 39 | 195644 |
| 40 | 225454 |