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A190878 as a simple table

n a(n)
0 1
1 1
2 3
3 13
4 73
5 621
6 6211
7 70393
8 884913
9 12534553
10 197772931
11 3429365061
12 64519103353
13 1309062244933
14 28518573321603
15 664268130978481
16 16466530506866401
17 432644339697987633
18 12007970879629419523
19 351062850914762411773
20 10783262700644774606121

[1,1,3,13,73,621,6211,70393,884913,12534553,
 197772931,3429365061,64519103353,1309062244933,
 28518573321603,664268130978481,16466530506866401,
 432644339697987633,12007970879629419523,
 351062850914762411773,10783262700644774606121]

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Last modified August 2 02:40 EDT 2021. Contains 346409 sequences. (Running on oeis4.)