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 | 223092870 |
| 2 | 281291010 |
| 3 | 300690390 |
| 4 | 6469693230 |
| 5 | 6915878970 |
| 6 | 8254436190 |
| 7 | 8720021310 |
| 8 | 9146807670 |
| 9 | 9592993410 |
| 10 | 10407767370 |
| 11 | 10485364890 |
| 12 | 10555815270 |
| 13 | 11125544430 |
| 14 | 11532931410 |
| 15 | 11797675890 |
| 16 | 11823922110 |
| 17 | 12095513430 |
| 18 | 12328305990 |
| 19 | 12598876290 |
| 20 | 12929686770 |
| 21 | 13162479330 |