A356257 - cp's OEIS frontend

A356257 Irregular triangle: row n consists of the frequencies of positive distances between permutations P and reverse(P), as P ranges through the permutations of (1, 2, ..., n); see Comments.

n	a(n)
1	1
2	2
3	4
4	2
5	8
6	16
7	24
8	16
9	32
10	32
11	16
12	48
13	192
14	192
15	288
16	192
17	144
18	576
19	576
20	576
21	576
22	960
23	576
24	576
25	288
26	384
27	2304
28	4608
29	7680
30	9216
31	6912
32	9216
33	1920
34	1536
35	9216
36	9216
37	16128
38	18432
39	29184
40	26112
41	36864
42	32256
43	41472
44	23040
45	39168
46	32256
47	18432
48	18432

[1, 2, 4, 2, 8, 16, 24, 16, 32, 32, 16, 48, 192, 192, 288, 192, 144, 576, 576, 576, 576, 960, 576, 576, 288, 384, 2304, 4608, 7680, 9216, 6912, 9216, 1920, 1536, 9216, 9216, 16128, 18432, 29184, 26112, 36864, 32256, 41472, 23040, 39168, 32256, 18432, 18432]

cp's OEIS Frontend

A356257 Irregular triangle: row n consists of the frequencies of positive distances between permutations P and reverse(P), as P ranges through the permutations of (1, 2, ..., n); see Comments.

Table of values

List of values