A342435 - OEIS

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A342435 as a simple table

n	a(n)
1	1
2	2
3	5
4	19
5	129
6	1303
7	16813
8	262166
9	4782981
10	100000133
11	2357947701
12	61917365564
13	1792160394049
14	56693912392115
15	1946195068359645
16	72057594038190124
17	2862423051509815809
18	121439531096599037355

[1,2,5,19,129,1303,16813,262166,4782981,100000133, 2357947701,61917365564,1792160394049, 56693912392115,1946195068359645,72057594038190124, 2862423051509815809,121439531096599037355]