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.

A341359 Square array T(m,n) read by antidiagonals, satisfying shifted Catalan recurrences: T(m,0) = 1 and T(m,n) = Sum_{k=0..n-1} T(m,k) * T(m,(n-1-k+m) mod n) for all n > 0.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 2
9 5
10 1
11 1
12 2
13 5
14 14
15 1
16 1
17 2
18 6
19 15
20 42
21 1
22 1
23 2
24 5
25 26
26 51
27 132
28 1
29 1
30 2
31 5
32 30
33 142
34 188
35 429
36 1
37 1
38 2
39 6
40 14
41 305
42 882
43 731
44 1430
45 1
46 1
47 2
48 5
49 17
50 210
51 3955
52 5910
53 2950
54 4862
55 1
56 1
57 2
58 5
59 22
60 50
61 5894
62 57855
63 41610
64 12235
65 16796
66 1
67 1
68 2
69 6
70 30
71 65
72 2550
73 209146
74 908880
75 303390
76 51822
77 58786

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 2, 5, 1, 1, 2, 5, 14, 1, 1, 2, 6, 15, 42, 1, 1, 2, 5, 26, 51, 132, 1, 1, 2, 5, 30, 142, 188, 429, 1, 1, 2, 6, 14, 305, 882, 731, 1430, 1, 1, 2, 5, 17, 210, 3955, 5910, 2950, 4862, 1, 1, 2, 5, 22, 50, 5894, 57855, 41610, 12235, 16796, 1, 1, 2, 6, 30, 65, 2550, 209146, 908880, 303390, 51822, 58786]