A305365 - OEIS

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A305365 as a simple table

n	a(n)
1	5
2	333
3	943
4	5465
5	32765
6	179644
7	1113793
8	6595796
9	39677540
10	241971927
11	1464024977
12	8913650834
13	54269187889
14	330301566873
15	2012653511729
16	12260934504511
17	74704834307297
18	455234824361587
19	2773994928611297

[5,333,943,5465,32765,179644,1113793,6595796, 39677540,241971927,1464024977,8913650834, 54269187889,330301566873,2012653511729, 12260934504511,74704834307297,455234824361587, 2773994928611297]