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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 2 |
| 5 | 7 |
| 6 | 12 |
| 7 | 11 |
| 8 | 31 |
| 9 | 51 |
| 10 | 44 |
| 11 | 117 |
| 12 | 216 |
| 13 | 157 |
| 14 | 453 |
| 15 | 851 |
| 16 | 566 |
| 17 | 1315 |
| 18 | 3860 |
| 19 | 6271 |
| 20 | 5979 |
| 21 | 16291 |
| 22 | 26552 |
| 23 | 22537 |
| 24 | 61360 |
| 25 | 112537 |
| 26 | 79657 |
| 27 | 229603 |
| 28 | 439754 |
| 29 | 275695 |
| 30 | 715580 |
| 31 | 2019251 |
| 32 | 3253127 |
| 33 | 3089427 |
| 34 | 8160916 |
| 35 | 13281965 |
| 36 | 9582952 |
| 37 | 29937989 |
| 38 | 58607677 |
| 39 | 36145651 |
| 40 | 85311918 |