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.

A300872 a(n) = A300871(n) / (n*(n+1)/2).

Table of values

n a(n)
1 1
2 1
3 8
4 151
5 4752
6 214848
7 12915744
8 986580860
9 92994888960
10 10595684332288
11 1436363905680384
12 228679178713630208
13 42284602089642237952
14 8992606241049735405568
15 2180532527491138011131904
16 598191016068264518151780096
17 184370870332464252513762869248
18 63445183762362816656030378164224
19 24238363163428954774170892697075712

List of values

[1, 1, 8, 151, 4752, 214848, 12915744, 986580860, 92994888960, 10595684332288, 1436363905680384, 228679178713630208, 42284602089642237952, 8992606241049735405568, 2180532527491138011131904, 598191016068264518151780096, 184370870332464252513762869248, 63445183762362816656030378164224, 24238363163428954774170892697075712]