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 | 128 |
| 2 | 2315 |
| 3 | 80440 |
| 4 | 903983 |
| 5 | 20391154 |
| 6 | 83139671 |
| 7 | 493478344 |
| 8 | 1387350083 |
| 9 | 4792175530 |
| 10 | 22042051839 |
| 11 | 49554665950 |
| 12 | 144486543083 |
| 13 | 339240816964 |
| 14 | 611059428071 |
| 15 | 1117682548534 |
| 16 | 2292393688371 |
| 17 | 4781045173190 |
| 18 | 7923788009211 |
| 19 | 13984499614534 |
| 20 | 23079619772925 |
| 21 | 34127018292022 |