A027598 - OEIS

A027598 as a simple table

n	a(n)
1	1
2	6
3	28
4	120
5	270
6	496
7	672
8	1080
9	1638
10	1782
11	3780
12	8128
13	18600
14	20580
15	24948
16	26208
17	30240
18	32640
19	32760
20	35640
21	41850
22	44226
23	55860
24	66960
25	164640
26	167400
27	185220
28	199584
29	273000
30	293760
31	401310
32	441936
33	446880
34	502740
35	523776
36	614250
37	707616
38	802620
39	819000

[1,6,28,120,270,496,672,1080,1638,1782,3780,8128, 18600,20580,24948,26208,30240,32640,32760,35640, 41850,44226,55860,66960,164640,167400,185220, 199584,273000,293760,401310,441936,446880,502740, 523776,614250,707616,802620,819000]