A185928 - OEIS

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A185928 as a simple table

n	a(n)
1	601280
2	199644672
3	67954333216
4	23071825269024
5	7834998846007456
6	2660771010874885728
7	903599949050079304640
8	306863268993289004333312
9	104211014202469023769406752
10	35390144409983069199319892064

[601280,199644672,67954333216,23071825269024, 7834998846007456,2660771010874885728, 903599949050079304640,306863268993289004333312, 104211014202469023769406752, 35390144409983069199319892064]