A293783 - cp's OEIS frontend

A293783 Triangle of numbers of squares {i^2}, i = 0,1..ceiling(n/2), in permutations of {1..n} in A293857.

n	a(n)
1	0
2	1
3	0
4	1
5	2
6	0
7	2
8	8
9	0
10	4
11	0
12	24
13	0
14	12
15	0
16	108
17	0
18	36
19	576
20	0
21	720
22	0
23	144
24	4608
25	0
26	4032
27	0
28	576
29	0
30	31680
31	0
32	31680
33	0
34	2880
35	0
36	288000
37	0
38	201600
39	0
40	14400
41	2505600
42	0
43	2764800
44	0
45	1987200
46	0
47	86400
48	30067200
49	0
50	28512000
51	0
52	14515200
53	0
54	518400

[0, 1, 0, 1, 2, 0, 2, 8, 0, 4, 0, 24, 0, 12, 0, 108, 0, 36, 576, 0, 720, 0, 144, 4608, 0, 4032, 0, 576, 0, 31680, 0, 31680, 0, 2880, 0, 288000, 0, 201600, 0, 14400, 2505600, 0, 2764800, 0, 1987200, 0, 86400, 30067200, 0, 28512000, 0, 14515200, 0, 518400]

cp's OEIS Frontend

A293783 Triangle of numbers of squares {i^2}, i = 0,1..ceiling(n/2), in permutations of {1..n} in A293857.

Table of values

List of values