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 | 3215031751 |
| 2 | 118670087467 |
| 3 | 307768373641 |
| 4 | 315962312077 |
| 5 | 354864744877 |
| 6 | 457453568161 |
| 7 | 528929554561 |
| 8 | 546348519181 |
| 9 | 602248359169 |
| 10 | 1362242655901 |
| 11 | 1871186716981 |
| 12 | 2152302898747 |
| 13 | 2273312197621 |
| 14 | 2366338900801 |
| 15 | 3343433905957 |
| 16 | 3461715915661 |
| 17 | 3474749660383 |
| 18 | 3477707481751 |
| 19 | 4341937413061 |
| 20 | 4777422165601 |
| 21 | 5537838510751 |