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A252570 as a simple table

n a(n)
1 1694
2 3441
3 9051
4 25882
5 88844
6 263046
7 802760
8 2655311
9 7860183
10 24273030
11 79767276
12 236117012
13 730342433
14 2398390660
15 7098703610
16 21963448780
17 72127785139
18 213445574577
19 660482900457
20 2169282202310
21 6418274172794

[1694,3441,9051,25882,88844,263046,802760,2655311,
 7860183,24273030,79767276,236117012,730342433,
 2398390660,7098703610,21963448780,72127785139,
 213445574577,660482900457,2169282202310,
 6418274172794]

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Last modified January 25 21:23 EST 2021. Contains 340427 sequences. (Running on oeis4.)