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 | 4 |
| 2 | 35 |
| 3 | 120 |
| 4 | 286 |
| 5 | 560 |
| 6 | 969 |
| 7 | 1540 |
| 8 | 2300 |
| 9 | 3276 |
| 10 | 4495 |
| 11 | 5984 |
| 12 | 7770 |
| 13 | 9880 |
| 14 | 12341 |
| 15 | 15180 |
| 16 | 18424 |
| 17 | 22100 |
| 18 | 26235 |
| 19 | 30856 |
| 20 | 35990 |
| 21 | 41664 |
| 22 | 47905 |
| 23 | 54740 |
| 24 | 62196 |
| 25 | 70300 |
| 26 | 79079 |
| 27 | 88560 |
| 28 | 98770 |
| 29 | 109736 |
| 30 | 121485 |
| 31 | 134044 |
| 32 | 147440 |
| 33 | 161700 |
| 34 | 176851 |
| 35 | 192920 |
| 36 | 209934 |
| 37 | 227920 |
| 38 | 246905 |