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 | 30 |
| 1 | 180 |
| 2 | 570 |
| 3 | 1320 |
| 4 | 2550 |
| 5 | 4380 |
| 6 | 6930 |
| 7 | 10320 |
| 8 | 14670 |
| 9 | 20100 |
| 10 | 26730 |
| 11 | 34680 |
| 12 | 44070 |
| 13 | 55020 |
| 14 | 67650 |
| 15 | 82080 |
| 16 | 98430 |
| 17 | 116820 |
| 18 | 137370 |
| 19 | 160200 |
| 20 | 185430 |
| 21 | 213180 |
| 22 | 243570 |
| 23 | 276720 |
| 24 | 312750 |
| 25 | 351780 |
| 26 | 393930 |
| 27 | 439320 |
| 28 | 488070 |
| 29 | 540300 |
| 30 | 596130 |
| 31 | 655680 |
| 32 | 719070 |
| 33 | 786420 |
| 34 | 857850 |
| 35 | 933480 |