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A201871 as a simple table

n a(n)
1 1
2 7
3 47
4 285
5 1905
6 13635
7 99143
8 734607
9 5477087
10 40989699
11 307950303
12 2320964021
13 17543356961
14 132967038437
15 1010302510909
16 7693410001853
17 58699664900479
18 448643950237839
19 3434254414420963
20 26324281838259421

[1,7,47,285,1905,13635,99143,734607,5477087,
 40989699,307950303,2320964021,17543356961,
 132967038437,1010302510909,7693410001853,
 58699664900479,448643950237839,3434254414420963,
 26324281838259421]

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Last modified January 30 09:51 EST 2023. Contains 359943 sequences. (Running on oeis4.)