A251258 - OEIS

A251258 as a simple table

n	a(n)
1	8
2	18
3	18
4	38
5	56
6	38
7	84
8	150
9	150
10	84
11	180
12	446
13	464
14	446
15	180
16	394
17	1232
18	1770
19	1770
20	1232
21	394
22	850
23	3602
24	5680
25	9130
26	5680
27	3602
28	850
29	1852
30	10108
31	21088
32	38332
33	38332
34	21088
35	10108
36	1852
37	4008
38	29272
39	69270
40	192442
41	185620
42	192442
43	69270
44	29272
45	4008

[8,18,18,38,56,38,84,150,150,84,180,446,464,446, 180,394,1232,1770,1770,1232,394,850,3602,5680, 9130,5680,3602,850,1852,10108,21088,38332,38332, 21088,10108,1852,4008,29272,69270,192442,185620, 192442,69270,29272,4008]