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 | 1 |
| 2 | 4 |
| 3 | 14 |
| 4 | 30 |
| 5 | 69 |
| 6 | 107 |
| 7 | 209 |
| 8 | 295 |
| 9 | 480 |
| 10 | 641 |
| 11 | 1000 |
| 12 | 1209 |
| 13 | 1819 |
| 14 | 2166 |
| 15 | 2976 |
| 16 | 3546 |
| 17 | 4844 |
| 18 | 5379 |
| 19 | 7314 |
| 20 | 8110 |
| 21 | 10402 |
| 22 | 11645 |
| 23 | 14949 |
| 24 | 15890 |
| 25 | 20405 |
| 26 | 21927 |
| 27 | 26910 |
| 28 | 29055 |
| 29 | 35959 |
| 30 | 37108 |
| 31 | 46375 |
| 32 | 48484 |
| 33 | 57890 |
| 34 | 61196 |
| 35 | 73536 |
| 36 | 75027 |
| 37 | 91389 |
| 38 | 93951 |
| 39 | 110096 |
| 40 | 114260 |