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.

A223524 Triangle S(n, k) by rows: coefficients of 2^(n/2)*(x^(1/2)*d/dx)^n, where n =0, 2, 4, 6, ...

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 12
6 4
7 15
8 90
9 60
10 8
11 105
12 840
13 840
14 224
15 16
16 945
17 9450
18 12600
19 5040
20 720
21 32
22 10395
23 124740
24 207900
25 110880
26 23760
27 2112
28 64
29 135135
30 1891890
31 3783780
32 2522520
33 720720
34 96096
35 5824
36 128
37 2027025
38 32432400

List of values

[1, 1, 2, 3, 12, 4, 15, 90, 60, 8, 105, 840, 840, 224, 16, 945, 9450, 12600, 5040, 720, 32, 10395, 124740, 207900, 110880, 23760, 2112, 64, 135135, 1891890, 3783780, 2522520, 720720, 96096, 5824, 128, 2027025, 32432400]