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 | 614 |
| 3 | 19046 |
| 4 | 202662 |
| 5 | 3960146 |
| 6 | 57116962 |
| 7 | 969423130 |
| 8 | 15356153490 |
| 9 | 251663556436 |
| 10 | 4077991415492 |
| 11 | 66396374393108 |
| 12 | 1080532144058480 |
| 13 | 17582607376407152 |
| 14 | 286281574650809374 |
| 15 | 4659426319356860956 |