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A253961 as a simple table

n a(n)
1 512
2 2992
3 2992
4 16544
5 20868
6 16544
7 82064
8 142800
9 148332
10 82064
11 423232
12 1022752
13 1501724
14 1048679
15 423232
16 2154496
17 7533252
18 15946360
19 16186768
20 7777096
21 2154496
22 11244672
23 55225242
24 167174472
25 240903042
26 168988280

[512,2992,2992,16544,20868,16544,82064,142800,
 148332,82064,423232,1022752,1501724,1048679,
 423232,2154496,7533252,15946360,16186768,7777096,
 2154496,11244672,55225242,167174472,240903042,
 168988280]

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Last modified December 2 08:18 EST 2020. Contains 338868 sequences. (Running on oeis4.)