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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.

A130561 Numbers associated to partitions, used for combinatoric interpretation of Lah triangle numbers A105278; elementary Schur polynomials / functions.

Table of values

n a(n)
1 1
2 2
3 1
4 6
5 6
6 1
7 24
8 24
9 12
10 12
11 1
12 120
13 120
14 120
15 60
16 60
17 20
18 1
19 720
20 720
21 720
22 360
23 360
24 720
25 120
26 120
27 180
28 30
29 1
30 5040
31 5040
32 5040
33 5040
34 2520
35 5040
36 2520
37 2520
38 840
39 2520
40 840
41 210
42 420
43 42
44 1
45 40320
46 40320
47 40320
48 40320
49 20160
50 20160
51 40320
52 40320
53 20160

List of values

[1, 2, 1, 6, 6, 1, 24, 24, 12, 12, 1, 120, 120, 120, 60, 60, 20, 1, 720, 720, 720, 360, 360, 720, 120, 120, 180, 30, 1, 5040, 5040, 5040, 5040, 2520, 5040, 2520, 2520, 840, 2520, 840, 210, 420, 42, 1, 40320, 40320, 40320, 40320, 20160, 20160, 40320, 40320, 20160]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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