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.

A079217 Triangle T(n,d) (listed row-wise: T(1,1)=1, T(2,1)=1, T(2,2)=1, T(3,1)=2, T(3,2)=0, T(3,3)=1, ...) giving the number of n-edge general plane trees with root degree d that are fixed by Catalan Automorphisms A057511/A057512 (Deep rotation of general parenthesizations/plane trees).

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 0
5 1
6 3
7 1
8 0
9 1
10 5
11 0
12 0
13 0
14 1
15 6
16 2
17 1
18 0
19 0
20 1
21 10
22 0
23 0
24 0
25 0
26 0
27 1
28 11
29 5
30 0
31 1
32 0
33 0
34 0
35 1
36 18
37 0
38 2
39 0
40 0
41 0
42 0
43 0
44 1
45 21
46 11
47 0
48 0
49 1
50 0
51 0
52 0
53 0
54 1
55 34
56 0
57 0
58 0
59 0
60 0
61 0
62 0
63 0
64 0
65 1
66 35
67 26
68 3
69 2
70 0
71 1
72 0
73 0
74 0
75 0
76 0
77 1
78 68
79 0
80 0
81 0
82 0
83 0
84 0
85 0
86 0
87 0
88 0
89 0
90 1
91 69
92 66
93 0
94 0
95 0
96 0
97 1
98 0
99 0

List of values

[1, 1, 1, 2, 0, 1, 3, 1, 0, 1, 5, 0, 0, 0, 1, 6, 2, 1, 0, 0, 1, 10, 0, 0, 0, 0, 0, 1, 11, 5, 0, 1, 0, 0, 0, 1, 18, 0, 2, 0, 0, 0, 0, 0, 1, 21, 11, 0, 0, 1, 0, 0, 0, 0, 1, 34, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 35, 26, 3, 2, 0, 1, 0, 0, 0, 0, 0, 1, 68, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 69, 66, 0, 0, 0, 0, 1, 0, 0]