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.

A056856 Triangle of numbers related to rooted trees and unrooted planar trees.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 9
6 9
7 6
8 44
9 96
10 64
11 24
12 250
13 875
14 1250
15 625
16 120
17 1644
18 8100
19 18360
20 19440
21 7776
22 720
23 12348
24 79576
25 252105
26 420175
27 352947
28 117649
29 5040
30 104544
31 840448
32 3465728
33 8028160
34 10551296
35 7340032
36 2097152

List of values

[1, 1, 2, 2, 9, 9, 6, 44, 96, 64, 24, 250, 875, 1250, 625, 120, 1644, 8100, 18360, 19440, 7776, 720, 12348, 79576, 252105, 420175, 352947, 117649, 5040, 104544, 840448, 3465728, 8028160, 10551296, 7340032, 2097152]