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 | 3 |
| 2 | 44 |
| 3 | 279 |
| 4 | 1104 |
| 5 | 3275 |
| 6 | 8028 |
| 7 | 17199 |
| 8 | 33344 |
| 9 | 59859 |
| 10 | 101100 |
| 11 | 162503 |
| 12 | 250704 |
| 13 | 373659 |
| 14 | 540764 |
| 15 | 762975 |
| 16 | 1052928 |
| 17 | 1425059 |
| 18 | 1895724 |
| 19 | 2483319 |
| 20 | 3208400 |
| 21 | 4093803 |
| 22 | 5164764 |
| 23 | 6449039 |
| 24 | 7977024 |
| 25 | 9781875 |
| 26 | 11899628 |
| 27 | 14369319 |
| 28 | 17233104 |
| 29 | 20536379 |
| 30 | 24327900 |
| 31 | 28659903 |
| 32 | 33588224 |
| 33 | 39172419 |
| 34 | 45475884 |