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 | 3 |
| 2 | 7 |
| 3 | 16 |
| 4 | 23 |
| 5 | 37 |
| 6 | 59 |
| 7 | 1031 |
| 8 | 97 |
| 9 | 521 |
| 10 | 149 |
| 11 | 536870923 |
| 12 | 211 |
| 13 | 144115188075855872 |
| 14 | 307 |
| 15 | 65536 |
| 16 | 1847 |
| 17 | 8209 |
| 18 | 1087 |
| 19 | 147573952589676412928 |
| 20 | 907 |
| 21 | 524309 |
| 22 | 1151 |
| 23 | 549755813911 |
| 24 | 4201 |
| 25 | 17179869209 |
| 26 | 2503 |
| 27 | 16411 |
| 28 | 2999 |
| 29 | 131101 |
| 30 | 1361 |
| 31 | 34359738368 |
| 32 | 5623 |
| 33 | 18014398509481984 |
| 34 | 8501 |
| 35 | 33554467 |
| 36 | 9587 |