cp's OEIS Frontend

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.

A386298 a(n) = 1 + Sum_{k=0..n-1} 2^k * binomial(n-1,k) * a(k) * a(n-1-k).

Table of values

n a(n)
0 1
1 2
2 7
3 52
4 721
5 17594
6 754063
7 58139188
8 8321310193
9 2272187953346
10 1206524396886823
11 1260788083530821380
12 2611061273843639666401
13 10760136322351992470924570
14 88437432027319862460463145551
15 1451522912694521425631922482171812
16 47608493474799808182534348919785356065

List of values

[1, 2, 7, 52, 721, 17594, 754063, 58139188, 8321310193, 2272187953346, 1206524396886823, 1260788083530821380, 2611061273843639666401, 10760136322351992470924570, 88437432027319862460463145551, 1451522912694521425631922482171812, 47608493474799808182534348919785356065]