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 | 1 |
| 2 | 3 |
| 3 | 14 |
| 4 | 84 |
| 5 | 592 |
| 6 | 4624 |
| 7 | 38527 |
| 8 | 334520 |
| 9 | 2985938 |
| 10 | 27183525 |
| 11 | 251204717 |
| 12 | 2349231434 |
| 13 | 22186989871 |
| 14 | 211295835831 |
| 15 | 2026765351330 |
| 16 | 19563183525857 |
| 17 | 189878734136185 |
| 18 | 1852021863338181 |
| 19 | 18143610295356357 |
| 20 | 178450501118284066 |
| 21 | 1761425423533593329 |
| 22 | 17443012946883397306 |
| 23 | 173247241040324621443 |
| 24 | 1725404763442479917997 |
| 25 | 17226646104539624029186 |
| 26 | 172389875494663129310211 |
| 27 | 1728819399958251503320772 |
| 28 | 17371923980126335814068340 |
| 29 | 174882805619639894274925366 |
| 30 | 1763573883561574064590764255 |
| 31 | 17813088298000097109198747848 |
| 32 | 180193867968101208748329431620 |
| 33 | 1825392351254024651444300421782 |
| 34 | 18516189068195200519689971895953 |
| 35 | 188058513067187124022632768762920 |
| 36 | 1912273561123769149363329826421051 |
| 37 | 19466808894886697821847017471202077 |
| 38 | 198381665775949932177580813656191187 |
| 39 | 2023702201274806730119560173885757279 |
| 40 | 20663697938590662344370538856632433182 |