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.

A006428 Number of loopless tree-rooted planar maps with 3 vertices and n faces and no isthmuses.

Table of values

n a(n)
1 0
2 3
3 36
4 135
5 360
6 798
7 1568
8 2826
9 4770
10 7645
11 11748
12 17433
13 25116
14 35280
15 48480
16 65348
17 86598
18 113031
19 145540
20 185115
21 232848
22 289938
23 357696
24 437550
25 531050
26 639873
27 765828
28 910861
29 1077060
30 1266660
31 1482048
32 1725768
33 2000526
34 2309195
35 2654820
36 3040623

List of values

[0, 3, 36, 135, 360, 798, 1568, 2826, 4770, 7645, 11748, 17433, 25116, 35280, 48480, 65348, 86598, 113031, 145540, 185115, 232848, 289938, 357696, 437550, 531050, 639873, 765828, 910861, 1077060, 1266660, 1482048, 1725768, 2000526, 2309195, 2654820, 3040623]