A188711 - OEIS

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A188711 as a simple table

n	a(n)
1	34
2	697
3	14925
4	318732
5	6814290
6	145764780
7	3118943536
8	66743533552
9	1428321913952
10	30566631602016
11	654139520133696
12	13998888884058752
13	299582781445141504
14	6411212320129846144
15	137202959280321342208

[34,697,14925,318732,6814290,145764780,3118943536, 66743533552,1428321913952,30566631602016, 654139520133696,13998888884058752, 299582781445141504,6411212320129846144, 137202959280321342208]