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 | 10 |
| 3 | 30 |
| 4 | 68 |
| 5 | 130 |
| 6 | 222 |
| 7 | 350 |
| 8 | 520 |
| 9 | 738 |
| 10 | 1010 |
| 11 | 1342 |
| 12 | 1740 |
| 13 | 2210 |
| 14 | 2758 |
| 15 | 3390 |
| 16 | 4112 |
| 17 | 4930 |
| 18 | 5850 |
| 19 | 6878 |
| 20 | 8020 |
| 21 | 9282 |
| 22 | 10670 |
| 23 | 12190 |
| 24 | 13848 |
| 25 | 15650 |
| 26 | 17602 |
| 27 | 19710 |
| 28 | 21980 |
| 29 | 24418 |
| 30 | 27030 |
| 31 | 29822 |
| 32 | 32800 |
| 33 | 35970 |
| 34 | 39338 |
| 35 | 42910 |
| 36 | 46692 |
| 37 | 50690 |
| 38 | 54910 |
| 39 | 59358 |
| 40 | 64040 |
| 41 | 68962 |
| 42 | 74130 |