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.

A143172 Partition number array, called M32(-2), related to A004747(n,m) = |S2(-2;n,m)| (generalized Stirling triangle).

Table of values

n a(n)
1 1
2 2
3 1
4 10
5 6
6 1
7 80
8 40
9 12
10 12
11 1
12 880
13 400
14 200
15 100
16 60
17 20
18 1
19 12320
20 5280
21 2400
22 1000
23 1200
24 1200
25 120
26 200
27 180
28 30
29 1
30 209440
31 86240
32 36960
33 28000
34 18480
35 16800
36 7000
37 4200
38 2800
39 4200
40 840
41 350
42 420
43 42
44 1
45 4188800
46 1675520
47 689920
48 492800
49 224000
50 344960

List of values

[1, 2, 1, 10, 6, 1, 80, 40, 12, 12, 1, 880, 400, 200, 100, 60, 20, 1, 12320, 5280, 2400, 1000, 1200, 1200, 120, 200, 180, 30, 1, 209440, 86240, 36960, 28000, 18480, 16800, 7000, 4200, 2800, 4200, 840, 350, 420, 42, 1, 4188800, 1675520, 689920, 492800, 224000, 344960]