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 | 4 |
| 2 | 15 |
| 3 | 34 |
| 4 | 249 |
| 5 | 391 |
| 6 | 565 |
| 7 | 771 |
| 8 | 886 |
| 9 | 1915 |
| 10 | 3814 |
| 11 | 5149 |
| 12 | 5739 |
| 13 | 6046 |
| 14 | 7354 |
| 15 | 9169 |
| 16 | 10765 |
| 17 | 11611 |
| 18 | 15814 |
| 19 | 16321 |
| 20 | 18429 |
| 21 | 20665 |
| 22 | 22426 |
| 23 | 24259 |
| 24 | 28141 |
| 25 | 29499 |
| 26 | 32311 |
| 27 | 36769 |
| 28 | 39106 |
| 29 | 43161 |
| 30 | 48291 |
| 31 | 52786 |
| 32 | 53709 |
| 33 | 57481 |
| 34 | 60394 |
| 35 | 63379 |
| 36 | 65409 |
| 37 | 67471 |
| 38 | 69565 |