A254488 - OEIS

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A254488 as a simple table

n	a(n)
1	660480
2	21822912
3	656964096
4	20365586688
5	615887502592
6	18731454463744
7	565727609862912
8	17046219218717440
9	513733060035181312
10	15493153946987141888
11	466551500635799010048
12	14062803876457224444672

[660480,21822912,656964096,20365586688, 615887502592,18731454463744,565727609862912, 17046219218717440,513733060035181312, 15493153946987141888,466551500635799010048, 14062803876457224444672]