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 | 30 |
| 2 | 247 |
| 3 | 1358 |
| 4 | 5102 |
| 5 | 16186 |
| 6 | 41817 |
| 7 | 98190 |
| 8 | 220628 |
| 9 | 441410 |
| 10 | 852887 |
| 11 | 1551568 |
| 12 | 2631642 |
| 13 | 4293186 |
| 14 | 6866813 |
| 15 | 10757450 |
| 16 | 16151192 |
| 17 | 23873746 |
| 18 | 34440605 |
| 19 | 48249066 |
| 20 | 66877582 |
| 21 | 91117898 |
| 22 | 122953643 |
| 23 | 165196270 |
| 24 | 218615372 |
| 25 | 284119458 |
| 26 | 364962773 |
| 27 | 462059210 |
| 28 | 579605426 |
| 29 | 732954370 |