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.

A158835 Triangle, read by rows, that transforms diagonals in the array A158825 of coefficients of successive iterations of x*C(x) where C(x) is the Catalan function (A000108).

Table of values

n a(n)
1 1
2 1
3 1
4 4
5 2
6 1
7 27
8 11
9 3
10 1
11 254
12 94
13 21
14 4
15 1
16 3062
17 1072
18 217
19 34
20 5
21 1
22 45052
23 15212
24 2904
25 412
26 50
27 6
28 1
29 783151
30 257777
31 47337
32 6325
33 695
34 69
35 7
36 1
37 15712342
38 5074738
39 906557
40 116372
41 12035
42 1082
43 91
44 8
45 1
46 357459042
47 113775490
48 19910808
49 2483706

List of values

[1, 1, 1, 4, 2, 1, 27, 11, 3, 1, 254, 94, 21, 4, 1, 3062, 1072, 217, 34, 5, 1, 45052, 15212, 2904, 412, 50, 6, 1, 783151, 257777, 47337, 6325, 695, 69, 7, 1, 15712342, 5074738, 906557, 116372, 12035, 1082, 91, 8, 1, 357459042, 113775490, 19910808, 2483706]