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 | 5 |
| 2 | 15 |
| 3 | 35 |
| 4 | 76 |
| 5 | 142 |
| 6 | 251 |
| 7 | 408 |
| 8 | 576 |
| 9 | 947 |
| 10 | 1367 |
| 11 | 1845 |
| 12 | 2600 |
| 13 | 3460 |
| 14 | 4011 |
| 15 | 5822 |
| 16 | 7386 |
| 17 | 9023 |
| 18 | 11423 |
| 19 | 13967 |
| 20 | 16242 |
| 21 | 20330 |
| 22 | 24235 |
| 23 | 28222 |
| 24 | 33686 |
| 25 | 39327 |
| 26 | 44967 |
| 27 | 52733 |
| 28 | 60608 |
| 29 | 67383 |
| 30 | 78947 |
| 31 | 89530 |
| 32 | 100040 |
| 33 | 113885 |
| 34 | 127791 |
| 35 | 141925 |
| 36 | 159356 |
| 37 | 177158 |
| 38 | 194895 |
| 39 | 217232 |
| 40 | 239662 |