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 | 0 |
| 1 | 34 |
| 2 | 186 |
| 3 | 610 |
| 4 | 1550 |
| 5 | 3360 |
| 6 | 6522 |
| 7 | 11671 |
| 8 | 19611 |
| 9 | 31335 |
| 10 | 48048 |
| 11 | 71182 |
| 12 | 102422 |
| 13 | 143721 |
| 14 | 197323 |
| 15 | 265782 |
| 16 | 351982 |
| 17 | 459156 |
| 18 | 590909 |
| 19 | 751233 |
| 20 | 944533 |
| 21 | 1175642 |
| 22 | 1449844 |
| 23 | 1772894 |
| 24 | 2151033 |
| 25 | 2591018 |
| 26 | 3100130 |
| 27 | 3686204 |
| 28 | 4357644 |
| 29 | 5123443 |