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 | 18 |
| 4 | 64 |
| 5 | 175 |
| 6 | 396 |
| 7 | 784 |
| 8 | 1408 |
| 9 | 2349 |
| 10 | 3700 |
| 11 | 5566 |
| 12 | 8064 |
| 13 | 11323 |
| 14 | 15484 |
| 15 | 20700 |
| 16 | 27136 |
| 17 | 34969 |
| 18 | 44388 |
| 19 | 55594 |
| 20 | 68800 |
| 21 | 84231 |
| 22 | 102124 |
| 23 | 122728 |
| 24 | 146304 |
| 25 | 173125 |
| 26 | 203476 |
| 27 | 237654 |
| 28 | 275968 |
| 29 | 318739 |
| 30 | 366300 |
| 31 | 418996 |
| 32 | 477184 |
| 33 | 541233 |
| 34 | 611524 |
| 35 | 688450 |
| 36 | 772416 |
| 37 | 863839 |
| 38 | 963148 |
| 39 | 1070784 |
| 40 | 1187200 |
| 41 | 1312861 |
| 42 | 1448244 |