A304155 - OEIS

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A304155 as a simple table

n	a(n)
1	0
2	702
3	1722
4	60352
5	839935
6	12806826
7	217640633
8	3520683600
9	56360283031
10	925790421949
11	14995653106319
12	243449572143143
13	3961555586460616
14	64339957150977924
15	1045521379732970185
16	16993284073070123472

[0,702,1722,60352,839935,12806826,217640633, 3520683600,56360283031,925790421949, 14995653106319,243449572143143,3961555586460616, 64339957150977924,1045521379732970185, 16993284073070123472]