A367024 - OEIS

A367024 as a simple table

n	a(n)
0	-1
1	-1
2	2
3	-1
4	8
5	2
6	-1
7	18
8	18
9	4
10	-1
11	32
12	72
13	64
14	10
15	-1
16	50
17	200
18	400
19	250
20	28
21	-1
22	72
23	450
24	1600
25	2250
26	1008
27	84
28	-1
29	98
30	882
31	4900
32	12250
33	12348
34	4116
35	264
36	-1
37	128
38	1568
39	12544
40	49000
41	87808
42	65856
43	16896
44	858
45	-1
46	162
47	2592
48	28224
49	158760
50	444528
51	592704
52	342144
53	69498
54	2860

[-1,-1,2,-1,8,2,-1,18,18,4,-1,32,72,64,10,-1,50, 200,400,250,28,-1,72,450,1600,2250,1008,84,-1,98, 882,4900,12250,12348,4116,264,-1,128,1568,12544, 49000,87808,65856,16896,858,-1,162,2592,28224, 158760,444528,592704,342144,69498,2860]