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.

A011274 Triangle of numbers of hybrid rooted trees (divided by Fibonacci numbers).

Table of values

n a(n)
1 1
2 2
3 1
4 7
5 4
6 1
7 31
8 18
9 6
10 1
11 154
12 90
13 33
14 8
15 1
16 820
17 481
18 185
19 52
20 10
21 1
22 4575
23 2690
24 1065
25 324
26 75
27 12
28 1
29 26398
30 15547
31 6276
32 2006
33 515
34 102
35 14
36 1
37 156233
38 92124
39 37711
40 12468
41 3420
42 766
43 133
44 16
45 1
46 943174
47 556664
48 230277
49 78030
50 22412
51 5439
52 1085
53 168
54 18
55 1

List of values

[1, 2, 1, 7, 4, 1, 31, 18, 6, 1, 154, 90, 33, 8, 1, 820, 481, 185, 52, 10, 1, 4575, 2690, 1065, 324, 75, 12, 1, 26398, 15547, 6276, 2006, 515, 102, 14, 1, 156233, 92124, 37711, 12468, 3420, 766, 133, 16, 1, 943174, 556664, 230277, 78030, 22412, 5439, 1085, 168, 18, 1]