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 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 8 |
| 9 | 15 |
| 10 | 22 |
| 11 | 29 |
| 12 | 36 |
| 13 | 43 |
| 14 | 50 |
| 15 | 253 |
| 16 | 505 |
| 17 | 806 |
| 18 | 1156 |
| 19 | 1555 |
| 20 | 2003 |
| 21 | 2500 |
| 22 | 9906 |
| 23 | 20105 |
| 24 | 33440 |
| 25 | 50254 |
| 26 | 70890 |
| 27 | 95691 |
| 28 | 125000 |
| 29 | 423270 |
| 30 | 861190 |
| 31 | 1467915 |
| 32 | 2275001 |
| 33 | 3316405 |
| 34 | 4628485 |
| 35 | 6250000 |
| 36 | 18944976 |
| 37 | 38420768 |
| 38 | 66538494 |
| 39 | 105430585 |
| 40 | 157517592 |
| 41 | 225524993 |
| 42 | 312500000 |