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 | -19 |
| 1 | 11 |
| 2 | -19 |
| 3 | 251 |
| 4 | 1901 |
| 5 | 6731 |
| 6 | 17261 |
| 7 | 36731 |
| 8 | 69101 |
| 9 | 119051 |
| 10 | 191981 |
| 11 | 294011 |
| 12 | 431981 |
| 13 | 613451 |
| 14 | 846701 |
| 15 | 1140731 |
| 16 | 1505261 |
| 17 | 1950731 |
| 18 | 2488301 |
| 19 | 3129851 |
| 20 | 3887981 |
| 21 | 4776011 |
| 22 | 5807981 |
| 23 | 6998651 |
| 24 | 8363501 |
| 25 | 9918731 |
| 26 | 11681261 |
| 27 | 13668731 |
| 28 | 15899501 |
| 29 | 18392651 |