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) |
|---|---|
| 5 | 1 |
| 6 | 4 |
| 7 | 14 |
| 8 | 39 |
| 9 | 97 |
| 10 | 212 |
| 11 | 429 |
| 12 | 804 |
| 13 | 1427 |
| 14 | 2406 |
| 15 | 3900 |
| 16 | 6094 |
| 17 | 9245 |
| 18 | 13645 |
| 19 | 19682 |
| 20 | 27791 |
| 21 | 38530 |
| 22 | 52516 |
| 23 | 70521 |
| 24 | 93390 |
| 25 | 122157 |
| 26 | 157945 |
| 27 | 202104 |
| 28 | 256090 |
| 29 | 321628 |
| 30 | 400567 |
| 31 | 495070 |
| 32 | 607445 |
| 33 | 740362 |
| 34 | 896657 |
| 35 | 1079581 |
| 36 | 1292574 |
| 37 | 1539546 |
| 38 | 1824621 |
| 39 | 2152452 |
| 40 | 2527932 |
| 41 | 2956546 |