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 | 1105 |
| 2 | 294409 |
| 3 | 852841 |
| 4 | 3828001 |
| 5 | 17098369 |
| 6 | 118901521 |
| 7 | 150846961 |
| 8 | 172947529 |
| 9 | 186393481 |
| 10 | 200753281 |
| 11 | 686059921 |
| 12 | 771043201 |
| 13 | 1001152801 |
| 14 | 1207252621 |
| 15 | 1269295201 |
| 16 | 1299963601 |
| 17 | 1632785701 |
| 18 | 1772267281 |
| 19 | 2301745249 |
| 20 | 4215885697 |
| 21 | 4562359201 |
| 22 | 4765950001 |
| 23 | 4897161361 |