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 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 12 |
| 8 | 1 |
| 9 | 10 |
| 10 | 71 |
| 11 | 16 |
| 12 | 103 |
| 13 | 215 |
| 14 | 311 |
| 15 | 311 |
| 16 | 311 |
| 17 | 431 |
| 18 | 30 |
| 19 | 791 |
| 20 | 36 |
| 21 | 575 |
| 22 | 8586 |
| 23 | 222349 |
| 24 | 222349 |
| 25 | 182169 |
| 26 | 144961 |
| 27 | 747338 |
| 28 | 8630 |
| 29 | 1343 |
| 30 | 89513 |
| 31 | 2904968 |
| 32 | 520321 |
| 33 | 45746 |
| 34 | 1005129 |
| 35 | 350073 |
| 36 | 1890784 |
| 37 | 72480703 |
| 38 | 34997904 |
| 39 | 257894479 |
| 40 | 257894479 |
| 41 | 1755387611 |
| 42 | 1755387611 |