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.

A152656 Triangle read by rows: denominators of polynomials from A000142: P(0,x) = 1, P(n,x) = 1/n! + x*Sum_{i=0..n-1} P(n-i-1)/i!. Numerators are A152650.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 1
6 6
7 1
8 1
9 1
10 24
11 3
12 2
13 1
14 1
15 120
16 3
17 2
18 1
19 1
20 1
21 720
22 15
23 8
24 3
25 2
26 1
27 1
28 5040
29 45
30 40
31 3
32 6
33 1
34 1
35 1
36 40320
37 315
38 80
39 15
40 24
41 1
42 2
43 1
44 1
45 362880
46 315
47 560
48 45
49 24
50 1
51 6
52 1
53 1
54 1
55 3628800
56 2835
57 4480
58 315
59 144
60 5
61 24
62 3
63 2
64 1
65 1

List of values

[1, 1, 1, 2, 1, 1, 6, 1, 1, 1, 24, 3, 2, 1, 1, 120, 3, 2, 1, 1, 1, 720, 15, 8, 3, 2, 1, 1, 5040, 45, 40, 3, 6, 1, 1, 1, 40320, 315, 80, 15, 24, 1, 2, 1, 1, 362880, 315, 560, 45, 24, 1, 6, 1, 1, 1, 3628800, 2835, 4480, 315, 144, 5, 24, 3, 2, 1, 1]