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.

A223526 Triangle S(n,k) by rows: coefficients of 3^(n/2)*(x^(2/3)*d/dx)^n when n=0,2,4,6,...

Table of values

n a(n)
1 1
2 1
3 3
4 4
5 24
6 9
7 28
8 252
9 189
10 27
11 280
12 3360
13 3780
14 1080
15 81
16 3640
17 54600
18 81900
19 35100
20 5265
21 243
22 58240
23 1048320
24 1965600
25 1123200
26 252720
27 23328
28 729
29 1106560
30 23237760
31 52284960
32 37346400
33 11203920
34 1551312
35 96957
36 2187
37 24344320
38 584263680
39 1533692160

List of values

[1, 1, 3, 4, 24, 9, 28, 252, 189, 27, 280, 3360, 3780, 1080, 81, 3640, 54600, 81900, 35100, 5265, 243, 58240, 1048320, 1965600, 1123200, 252720, 23328, 729, 1106560, 23237760, 52284960, 37346400, 11203920, 1551312, 96957, 2187, 24344320, 584263680, 1533692160]