A303107 - OEIS

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A303107 as a simple table

n	a(n)
1	0
2	1172
3	102952
4	5550469
5	436394066
6	32409609245
7	2441756629583
8	183384084351689
9	13794436866124300
10	1037425601212697006
11	78023920445683729803
12	5868131456816299629031
13	441338827948853709668453

[0,1172,102952,5550469,436394066,32409609245, 2441756629583,183384084351689,13794436866124300, 1037425601212697006,78023920445683729803, 5868131456816299629031,441338827948853709668453]