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) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 17 |
4 | 139 |
5 | 1455 |
6 | 18326 |
7 | 267700 |
8 | 4426686 |
9 | 81455357 |
10 | 1646941293 |
11 | 36238989035 |
12 | 861298646217 |
13 | 21978627323651 |
14 | 599195351716464 |
15 | 17379759869328515 |
16 | 534392854606942358 |
17 | 17363705283005593096 |
18 | 594513962872698955686 |
19 | 21395116871674867310280 |
20 | 807416275879430472577570 |