A088892 - OEIS

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A088892 as a simple table

n	a(n)
1	0
2	1
3	291
4	16096
5	356232
6	4411517
7	36621423
8	227095448
9	1128128568
10	4708376529
11	17078744419
12	55199550120
13	161993768080
14	438011626365
15	1103841220991
16	2616890599056
17	5880356075792
18	12602902382337

[0,1,291,16096,356232,4411517,36621423,227095448, 1128128568,4708376529,17078744419,55199550120, 161993768080,438011626365,1103841220991, 2616890599056,5880356075792,12602902382337]