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 | 0 |
| 2 | 4 |
| 3 | 22 |
| 4 | 70 |
| 5 | 170 |
| 6 | 350 |
| 7 | 644 |
| 8 | 1092 |
| 9 | 1740 |
| 10 | 2640 |
| 11 | 3850 |
| 12 | 5434 |
| 13 | 7462 |
| 14 | 10010 |
| 15 | 13160 |
| 16 | 17000 |
| 17 | 21624 |
| 18 | 27132 |
| 19 | 33630 |
| 20 | 41230 |
| 21 | 50050 |
| 22 | 60214 |
| 23 | 71852 |
| 24 | 85100 |
| 25 | 100100 |
| 26 | 117000 |
| 27 | 135954 |
| 28 | 157122 |
| 29 | 180670 |
| 30 | 206770 |
| 31 | 235600 |
| 32 | 267344 |
| 33 | 302192 |
| 34 | 340340 |
| 35 | 381990 |
| 36 | 427350 |
| 37 | 476634 |