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.

A062867 Triangle read by rows: entries give numbers of permutations of [1..n] by absolute barycenter.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 2
5 14
6 8
7 2
8 46
9 62
10 10
11 2
12 282
13 292
14 132
15 12
16 2
17 1394
18 2578
19 784
20 268
21 14
22 2
23 12658
24 15472
25 9718
26 1920
27 534
28 16
29 2
30 83122
31 171662
32 69318
33 33230
34 4470
35 1058
36 18
37 2
38 985730
39 1282604
40 964544
41 276044
42 107660
43 10100
44 2096
45 20
46 2
47 8012962
48 17465978
49 8199268
50 4851200
51 1022824
52 337988
53 22396
54 4160
55 22
56 2

List of values

[1, 1, 2, 4, 2, 14, 8, 2, 46, 62, 10, 2, 282, 292, 132, 12, 2, 1394, 2578, 784, 268, 14, 2, 12658, 15472, 9718, 1920, 534, 16, 2, 83122, 171662, 69318, 33230, 4470, 1058, 18, 2, 985730, 1282604, 964544, 276044, 107660, 10100, 2096, 20, 2, 8012962, 17465978, 8199268, 4851200, 1022824, 337988, 22396, 4160, 22, 2]

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

Content is available under The OEIS End-User License Agreement.