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) |
|---|---|
| 7 | 1 |
| 8 | 7 |
| 9 | 28 |
| 10 | 84 |
| 11 | 210 |
| 12 | 462 |
| 13 | 924 |
| 14 | 1715 |
| 15 | 3003 |
| 16 | 4998 |
| 17 | 8008 |
| 18 | 12348 |
| 19 | 18564 |
| 20 | 27048 |
| 21 | 38759 |
| 22 | 54054 |
| 23 | 74613 |
| 24 | 100478 |
| 25 | 134596 |
| 26 | 176176 |
| 27 | 230202 |
| 28 | 294294 |
| 29 | 376740 |
| 30 | 471933 |
| 31 | 593775 |
| 32 | 731276 |
| 33 | 905982 |
| 34 | 1099560 |
| 35 | 1344903 |
| 36 | 1610322 |
| 37 | 1947792 |
| 38 | 2306220 |
| 39 | 2759757 |
| 40 | 3235484 |
| 41 | 3838380 |