A184300 - OEIS

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A184300 as a simple table

n	a(n)
1	1
2	1
3	2
4	1
5	5
6	24
7	65
8	410
9	1659
10	7845
11	40080
12	197295
13	924401
14	4632572
15	23035734
16	115827283
17	543708298
18	2682765603

[1,1,2,1,5,24,65,410,1659,7845,40080,197295, 924401,4632572,23035734,115827283,543708298, 2682765603]