A185056 - OEIS

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A185056 as a simple table

n	a(n)
1	1
2	2
3	5
4	24
5	125
6	796
7	5635
8	48042
9	453947
10	4834872
11	56433455
12	727449366
13	10099103269
14	152097526360
15	2449915208271
16	42295879864692

[1,2,5,24,125,796,5635,48042,453947,4834872, 56433455,727449366,10099103269,152097526360, 2449915208271,42295879864692]