A233108 - OEIS

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A233108 as a simple table

n	a(n)
1	6
2	313
3	24912
4	2154065
5	189286871
6	16683923848
7	1471365099497
8	129774107522700
9	11446271884607256
10	1009582054691903383
11	89047037607095248482
12	7854117302435219663735
13	692748031461206544348041

[6,313,24912,2154065,189286871,16683923848, 1471365099497,129774107522700,11446271884607256, 1009582054691903383,89047037607095248482, 7854117302435219663735,692748031461206544348041]