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 | 21 |
| 3 | 95 |
| 4 | 259 |
| 5 | 549 |
| 6 | 1001 |
| 7 | 1651 |
| 8 | 2535 |
| 9 | 3689 |
| 10 | 5149 |
| 11 | 6951 |
| 12 | 9131 |
| 13 | 11725 |
| 14 | 14769 |
| 15 | 18299 |
| 16 | 22351 |
| 17 | 26961 |
| 18 | 32165 |
| 19 | 37999 |
| 20 | 44499 |
| 21 | 51701 |
| 22 | 59641 |
| 23 | 68355 |
| 24 | 77879 |
| 25 | 88249 |
| 26 | 99501 |
| 27 | 111671 |
| 28 | 124795 |
| 29 | 138909 |
| 30 | 154049 |
| 31 | 170251 |
| 32 | 187551 |
| 33 | 205985 |
| 34 | 225589 |
| 35 | 246399 |
| 36 | 268451 |
| 37 | 291781 |
| 38 | 316425 |