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 | 2 |
| 2 | 20 |
| 3 | 70 |
| 4 | 168 |
| 5 | 330 |
| 6 | 572 |
| 7 | 910 |
| 8 | 1360 |
| 9 | 1938 |
| 10 | 2660 |
| 11 | 3542 |
| 12 | 4600 |
| 13 | 5850 |
| 14 | 7308 |
| 15 | 8990 |
| 16 | 10912 |
| 17 | 13090 |
| 18 | 15540 |
| 19 | 18278 |
| 20 | 21320 |
| 21 | 24682 |
| 22 | 28380 |
| 23 | 32430 |
| 24 | 36848 |
| 25 | 41650 |
| 26 | 46852 |
| 27 | 52470 |
| 28 | 58520 |
| 29 | 65018 |
| 30 | 71980 |
| 31 | 79422 |
| 32 | 87360 |
| 33 | 95810 |
| 34 | 104788 |
| 35 | 114310 |
| 36 | 124392 |
| 37 | 135050 |
| 38 | 146300 |
| 39 | 158158 |
| 40 | 170640 |
| 41 | 183762 |
| 42 | 197540 |
| 43 | 211990 |
| 44 | 227128 |
| 45 | 242970 |