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A252224 as a simple table

n a(n)
1 1442
2 7724
3 24932
4 58334
5 160688
6 512822
7 1619714
8 4972874
9 15236172
10 46914228
11 144610766
12 445412672
13 1371485862
14 4223410850
15 13006666602
16 40055759564
17 123355278788
18 379883410622
19 1169887334864
20 3602781631574
21 11095111201922

[1442,7724,24932,58334,160688,512822,1619714,
 4972874,15236172,46914228,144610766,445412672,
 1371485862,4223410850,13006666602,40055759564,
 123355278788,379883410622,1169887334864,
 3602781631574,11095111201922]

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Last modified December 3 13:43 EST 2021. Contains 349463 sequences. (Running on oeis4.)