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 | 6 |
| 3 | 13 |
| 4 | 22 |
| 5 | 40 |
| 6 | 55 |
| 7 | 88 |
| 8 | 118 |
| 9 | 163 |
| 10 | 205 |
| 11 | 280 |
| 12 | 334 |
| 13 | 436 |
| 14 | 517 |
| 15 | 625 |
| 16 | 733 |
| 17 | 901 |
| 18 | 1018 |
| 19 | 1225 |
| 20 | 1381 |
| 21 | 1591 |
| 22 | 1786 |
| 23 | 2083 |
| 24 | 2287 |
| 25 | 2617 |
| 26 | 2887 |
| 27 | 3238 |
| 28 | 3544 |
| 29 | 4006 |
| 30 | 4306 |
| 31 | 4831 |
| 32 | 5239 |
| 33 | 5749 |
| 34 | 6205 |
| 35 | 6817 |
| 36 | 7267 |
| 37 | 8005 |
| 38 | 8572 |
| 39 | 9280 |
| 40 | 9880 |
| 41 | 10780 |
| 42 | 11374 |
| 43 | 12361 |