A378591 - OEIS

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A378591 as a simple table

n	a(n)
1	4
2	352
3	120905728
4	2407558186389936749412352
5	14134769792236367387238791435785519303295716096758551664972849610340958208

[4,352,120905728,2407558186389936749412352, 14134769792236367387238791435785519303295716096758\ 551664972849610340958208]