A127132 - OEIS

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A127132 as a simple table

n	a(n)
0	1
1	1
2	5
3	36
4	336
5	3793
6	49691
7	736301
8	12130141
9	219488417
10	4322334090
11	91974793971
12	2102457339356
13	51377007363853
14	1336508757460743
15	36876168645675673
16	1075680625224925835
17	33076997985647151025

[1,1,5,36,336,3793,49691,736301,12130141, 219488417,4322334090,91974793971,2102457339356, 51377007363853,1336508757460743,36876168645675673, 1075680625224925835,33076997985647151025]